135260531 has 12 divisors (see below), whose sum is σ = 157601808. Its totient is φ = 115747632.

The previous prime is 135260507. The next prime is 135260537. The reversal of 135260531 is 135062531.

It is not a de Polignac number, because 135260531 - 2²² = 131066227 is a prime.

It is a super-2 number, since 2×135260531² = 36590822492803922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135260531.

It is not an unprimeable number, because it can be changed into a prime (135260537) 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, 33725 + ... + 37521.

It is an arithmetic number, because the mean of its divisors is an integer number (13133484).

Almost surely, 2^135260531 is an apocalyptic number.

135260531 is a deficient number, since it is larger than the sum of its proper divisors (22341277).

135260531 is an equidigital number, since it uses as much as digits as its factorization.

135260531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4538 (or 4531 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 135260531 is about 11630.1561038535. The cubic root of 135260531 is about 513.3225732363.

The spelling of 135260531 in words is "one hundred thirty-five million, two hundred sixty thousand, five hundred thirty-one".