135425524531 has 8 divisors (see below), whose sum is σ = 148957903728. Its totient is φ = 123114112000.

The previous prime is 135425524519. The next prime is 135425524541.

135425524531 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 135425524531 - 2⁵ = 135425524499 is a prime.

It is a super-2 number, since 2×135425524531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135425524541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50872270 + ... + 50874931.

It is an arithmetic number, because the mean of its divisors is an integer number (18619737966).

Almost surely, 2^135425524531 is an apocalyptic number.

135425524531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135425524531 is a deficient number, since it is larger than the sum of its proper divisors (13532379197).

135425524531 is an equidigital number, since it uses as much as digits as its factorization.

135425524531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101747234 (or 101747212 counting only the distinct ones).

The product of its digits is 360000, while the sum is 40.

It can be divided in two parts, 135425 and 524531, that added together give a palindrome (659956).

The spelling of 135425524531 in words is "one hundred thirty-five billion, four hundred twenty-five million, five hundred twenty-four thousand, five hundred thirty-one".