122535431 has 4 divisors (see below), whose sum is σ = 122927232. Its totient is φ = 122143632.

The previous prime is 122535419. The next prime is 122535449. The reversal of 122535431 is 134535221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122535431 - 2⁶ = 122535367 is a prime.

It is a super-2 number, since 2×122535431² = 30029863700711522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122535431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122535401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195431 + ... + 196056.

It is an arithmetic number, because the mean of its divisors is an integer number (30731808).

Almost surely, 2^122535431 is an apocalyptic number.

122535431 is a deficient number, since it is larger than the sum of its proper divisors (391801).

122535431 is an equidigital number, since it uses as much as digits as its factorization.

122535431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391800.

The product of its digits is 3600, while the sum is 26.

The square root of 122535431 is about 11069.5723042943. The cubic root of 122535431 is about 496.6920714800.

The spelling of 122535431 in words is "one hundred twenty-two million, five hundred thirty-five thousand, four hundred thirty-one".