122535531 has 16 divisors (see below), whose sum is σ = 181926400. Its totient is φ = 81513864.

The previous prime is 122535463. The next prime is 122535551. The reversal of 122535531 is 135535221.

It is a happy number.

122535531 is a `hidden beast` number, since 122 + 5 + 3 + 5 + 531 = 666.

It is not a de Polignac number, because 122535531 - 2¹⁰ = 122534507 is a prime.

It is a super-2 number, since 2×122535531² = 30029912714903922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122535495 and 122535504.

It is not an unprimeable number, because it can be changed into a prime (122535551) 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, 8490 + ... + 17808.

It is an arithmetic number, because the mean of its divisors is an integer number (11370400).

Almost surely, 2^122535531 is an apocalyptic number.

122535531 is a deficient number, since it is larger than the sum of its proper divisors (59390869).

122535531 is an equidigital number, since it uses as much as digits as its factorization.

122535531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9815 (or 9809 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 122535531 is about 11069.5768211798. The cubic root of 122535531 is about 496.6922065952.

The spelling of 122535531 in words is "one hundred twenty-two million, five hundred thirty-five thousand, five hundred thirty-one".