234731431 has 4 divisors (see below), whose sum is σ = 256070664. Its totient is φ = 213392200.

The previous prime is 234731429. The next prime is 234731447. The reversal of 234731431 is 134137432.

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 234731431 - 2¹ = 234731429 is a prime.

It is a super-2 number, since 2×234731431² = 110197689398615522, 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 234731431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234731401) 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, 10669600 + ... + 10669621.

It is an arithmetic number, because the mean of its divisors is an integer number (64017666).

Almost surely, 2^234731431 is an apocalyptic number.

234731431 is a deficient number, since it is larger than the sum of its proper divisors (21339233).

234731431 is a wasteful number, since it uses less digits than its factorization.

234731431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21339232.

The product of its digits is 6048, while the sum is 28.

The square root of 234731431 is about 15320.9474576477. The cubic root of 234731431 is about 616.8654058567.

Adding to 234731431 its reverse (134137432), we get a palindrome (368868863).

The spelling of 234731431 in words is "two hundred thirty-four million, seven hundred thirty-one thousand, four hundred thirty-one".