88135431 has 8 divisors (see below), whose sum is σ = 117566064. Its totient is φ = 58730880.

The previous prime is 88135427. The next prime is 88135441. The reversal of 88135431 is 13453188.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 88135431 - 2² = 88135427 is a prime.

It is a super-2 number, since 2×88135431² = 15535708395111522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 88135392 and 88135401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88135441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3621 + ... + 13761.

It is an arithmetic number, because the mean of its divisors is an integer number (14695758).

Almost surely, 2^88135431 is an apocalyptic number.

88135431 is a deficient number, since it is larger than the sum of its proper divisors (29430633).

88135431 is a wasteful number, since it uses less digits than its factorization.

With its successor (88135432) it forms an eRAP, since the sums of their prime factors are consecutive (13041 and 13042).

88135431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13041.

The product of its digits is 11520, while the sum is 33.

The square root of 88135431 is about 9388.0472410401. The cubic root of 88135431 is about 445.0240798315.

The spelling of 88135431 in words is "eighty-eight million, one hundred thirty-five thousand, four hundred thirty-one".