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135197345 = 5179531669
BaseRepresentation
bin10000000111011…
…11001010100001
3100102101201220002
420003233022201
5234102303340
621225425345
73231105233
oct1003571241
9312351802
10135197345
116a351848
123933b255
132201833a
1413d54253
15bd08715
hex80ef2a1

135197345 has 16 divisors (see below), whose sum is σ = 172063440. Its totient is φ = 101627904.

The previous prime is 135197327. The next prime is 135197347. The reversal of 135197345 is 543791531.

It can be written as a sum of positive squares in 8 ways, for example, as 358801 + 134838544 = 599^2 + 11612^2 .

It is not a de Polignac number, because 135197345 - 214 = 135180961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135197299 and 135197308.

It is not an unprimeable number, because it can be changed into a prime (135197347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80171 + ... + 81839.

It is an arithmetic number, because the mean of its divisors is an integer number (10753965).

Almost surely, 2135197345 is an apocalyptic number.

It is an amenable number.

135197345 is a deficient number, since it is larger than the sum of its proper divisors (36866095).

135197345 is a wasteful number, since it uses less digits than its factorization.

135197345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644.

The product of its digits is 56700, while the sum is 38.

The square root of 135197345 is about 11627.4393139676. The cubic root of 135197345 is about 513.2426291173.

The spelling of 135197345 in words is "one hundred thirty-five million, one hundred ninety-seven thousand, three hundred forty-five".

Divisors: 1 5 17 85 953 1669 4765 8345 16201 28373 81005 141865 1590557 7952785 27039469 135197345