135262557 has 12 divisors (see below), whose sum is σ = 206872380. Its totient is φ = 84870528.

The previous prime is 135262553. The next prime is 135262607. The reversal of 135262557 is 755262531.

It can be written as a sum of positive squares in 2 ways, for example, as 122345721 + 12916836 = 11061^2 + 3594^2 .

It is not a de Polignac number, because 135262557 - 2² = 135262553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135262553) 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, 441882 + ... + 442187.

It is an arithmetic number, because the mean of its divisors is an integer number (17239365).

Almost surely, 2^135262557 is an apocalyptic number.

135262557 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

135262557 is a deficient number, since it is larger than the sum of its proper divisors (71609823).

135262557 is a wasteful number, since it uses less digits than its factorization.

135262557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884092 (or 884089 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 135262557 is about 11630.2432046798. The cubic root of 135262557 is about 513.3251361578.

The spelling of 135262557 in words is "one hundred thirty-five million, two hundred sixty-two thousand, five hundred fifty-seven".