231461657 has 8 divisors (see below), whose sum is σ = 264738432. Its totient is φ = 198237600.

The previous prime is 231461641. The next prime is 231461669. The reversal of 231461657 is 756164132.

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

It is a cyclic number.

It is not a de Polignac number, because 231461657 - 2⁴ = 231461641 is a prime.

It is a super-2 number, since 2×231461657² = 107148997322371298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231461357) 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, 3269 + ... + 21762.

It is an arithmetic number, because the mean of its divisors is an integer number (33092304).

Almost surely, 2^231461657 is an apocalyptic number.

It is an amenable number.

231461657 is a deficient number, since it is larger than the sum of its proper divisors (33276775).

231461657 is a wasteful number, since it uses less digits than its factorization.

231461657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26359.

The product of its digits is 30240, while the sum is 35.

The square root of 231461657 is about 15213.8639733632. The cubic root of 231461657 is about 613.9877211096.

The spelling of 231461657 in words is "two hundred thirty-one million, four hundred sixty-one thousand, six hundred fifty-seven".