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136525 = 5243127
BaseRepresentation
bin100001010101001101
320221021111
4201111031
513332100
62532021
71106014
oct412515
9227244
10136525
1193634
1267011
134a1ac
1437a7b
152a6ba
hex2154d

136525 has 12 divisors (see below), whose sum is σ = 174592. Its totient is φ = 105840.

The previous prime is 136523. The next prime is 136531. The reversal of 136525 is 525631.

Subtracting from 136525 its sum of digits (22), we obtain a triangular number (136503 = T522).

It is a happy number.

It is not a de Polignac number, because 136525 - 21 = 136523 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

Its product of digits (900) is a multiple of the sum of its prime factors (180).

It is a junction number, because it is equal to n+sod(n) for n = 136496 and 136505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1012 + ... + 1138.

136525 is a Friedman number, since it can be written as 635*215, using all its digits and the basic arithmetic operations.

It is a vampire number, since it can be written as 215635 (with its own digits).

2136525 is an apocalyptic number.

It is an amenable number.

136525 is a deficient number, since it is larger than the sum of its proper divisors (38067).

136525 is a wasteful number, since it uses less digits than its factorization.

136525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 175 counting only the distinct ones).

The product of its digits is 900, while the sum is 22.

The square root of 136525 is about 369.4928957368. The cubic root of 136525 is about 51.4917195346.

The spelling of 136525 in words is "one hundred thirty-six thousand, five hundred twenty-five".

Divisors: 1 5 25 43 127 215 635 1075 3175 5461 27305 136525