231541466 has 8 divisors (see below), whose sum is σ = 374028564. Its totient is φ = 106865280.

The previous prime is 231541459. The next prime is 231541493. The reversal of 231541466 is 664145132.

It can be written as a sum of positive squares in 2 ways, for example, as 218182441 + 13359025 = 14771^2 + 3655^2 .

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

It is a super-2 number, since 2×231541466² = 107222900954858312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4452695 + ... + 4452746.

Almost surely, 2^231541466 is an apocalyptic number.

231541466 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

231541466 is a deficient number, since it is larger than the sum of its proper divisors (142487098).

231541466 is a wasteful number, since it uses less digits than its factorization.

231541466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8905456.

The product of its digits is 17280, while the sum is 32.

The square root of 231541466 is about 15216.4866509980. The cubic root of 231541466 is about 614.0582815583.

Adding to 231541466 its reverse (664145132), we get a palindrome (895686598).

The spelling of 231541466 in words is "two hundred thirty-one million, five hundred forty-one thousand, four hundred sixty-six".