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2135237 = 13164249
BaseRepresentation
bin1000001001010011000101
311000110222212
420021103011
51021311422
6113433205
724102116
oct10112305
94013885
102135237
111229265
1286b805
13599b70
143d820d
152c29e2
hex2094c5

2135237 has 4 divisors (see below), whose sum is σ = 2299500. Its totient is φ = 1970976.

The previous prime is 2135227. The next prime is 2135267. The reversal of 2135237 is 7325312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 101761 + 2033476 = 319^2 + 1426^2 .

It is a cyclic number.

It is not a de Polignac number, because 2135237 - 26 = 2135173 is a prime.

It is a d-powerful number, because it can be written as 29 + 1 + 3 + 59 + 211 + 311 + 74 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82112 + ... + 82137.

It is an arithmetic number, because the mean of its divisors is an integer number (574875).

22135237 is an apocalyptic number.

It is an amenable number.

2135237 is a deficient number, since it is larger than the sum of its proper divisors (164263).

2135237 is a wasteful number, since it uses less digits than its factorization.

2135237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164262.

The product of its digits is 1260, while the sum is 23.

The square root of 2135237 is about 1461.2450171001. The cubic root of 2135237 is about 128.7701976043.

The spelling of 2135237 in words is "two million, one hundred thirty-five thousand, two hundred thirty-seven".

Divisors: 1 13 164249 2135237