231374407 has 4 divisors (see below), whose sum is σ = 252408456. Its totient is φ = 210340360.

The previous prime is 231374401. The next prime is 231374447. The reversal of 231374407 is 704473132.

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 231374407 - 2²⁷ = 97156679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231374401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10517008 + ... + 10517029.

It is an arithmetic number, because the mean of its divisors is an integer number (63102114).

Almost surely, 2^231374407 is an apocalyptic number.

231374407 is a deficient number, since it is larger than the sum of its proper divisors (21034049).

231374407 is a wasteful number, since it uses less digits than its factorization.

231374407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21034048.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 231374407 is about 15210.9962527114. The cubic root of 231374407 is about 613.9105633895.

The spelling of 231374407 in words is "two hundred thirty-one million, three hundred seventy-four thousand, four hundred seven".