231359397 has 8 divisors (see below), whose sum is σ = 313536480. Its totient is φ = 151710960.

The previous prime is 231359353. The next prime is 231359399. The reversal of 231359397 is 793953132.

231359397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 231359397 - 2¹⁸ = 231097253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231359399) 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, 631947 + ... + 632312.

It is an arithmetic number, because the mean of its divisors is an integer number (39192060).

Almost surely, 2^231359397 is an apocalyptic number.

It is an amenable number.

231359397 is a deficient number, since it is larger than the sum of its proper divisors (82177083).

231359397 is a wasteful number, since it uses less digits than its factorization.

231359397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264323.

The product of its digits is 153090, while the sum is 42.

The square root of 231359397 is about 15210.5028516483. The cubic root of 231359397 is about 613.8972876532.

The spelling of 231359397 in words is "two hundred thirty-one million, three hundred fifty-nine thousand, three hundred ninety-seven".