235081431 has 12 divisors (see below), whose sum is σ = 365682408. Its totient is φ = 144665424.

The previous prime is 235081421. The next prime is 235081477. The reversal of 235081431 is 134180532.

It is a happy number.

235081431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 235081431 - 2⁷ = 235081303 is a prime.

It is a super-2 number, since 2×235081431² = 110526558402015522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 235081395 and 235081404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235081411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1004505 + ... + 1004738.

It is an arithmetic number, because the mean of its divisors is an integer number (30473534).

Almost surely, 2^235081431 is an apocalyptic number.

235081431 is a deficient number, since it is larger than the sum of its proper divisors (130600977).

235081431 is a wasteful number, since it uses less digits than its factorization.

235081431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009262 (or 2009259 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 235081431 is about 15332.3654730769. The cubic root of 235081431 is about 617.1718492268.

The spelling of 235081431 in words is "two hundred thirty-five million, eighty-one thousand, four hundred thirty-one".