235022431 has 4 divisors (see below), whose sum is σ = 268597072. Its totient is φ = 201447792.

The previous prime is 235022401. The next prime is 235022461. The reversal of 235022431 is 134220532.

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

It is an interprime number because it is at equal distance from previous prime (235022401) and next prime (235022461).

It is a de Polignac number, because none of the positive numbers 2^k-235022431 is a prime.

It is a super-2 number, since 2×235022431² = 110471086146299522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235022401) 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, 16787310 + ... + 16787323.

It is an arithmetic number, because the mean of its divisors is an integer number (67149268).

Almost surely, 2^235022431 is an apocalyptic number.

235022431 is a deficient number, since it is larger than the sum of its proper divisors (33574641).

235022431 is an equidigital number, since it uses as much as digits as its factorization.

235022431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33574640.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 235022431 is about 15330.4413178486. The cubic root of 235022431 is about 617.1202129553.

Adding to 235022431 its reverse (134220532), we get a palindrome (369242963).

The spelling of 235022431 in words is "two hundred thirty-five million, twenty-two thousand, four hundred thirty-one".