231545434 has 8 divisors (see below), whose sum is σ = 352502208. Its totient is φ = 114044700.

The previous prime is 231545407. The next prime is 231545459. The reversal of 231545434 is 434545132.

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

It is a super-2 number, since 2×231545434² = 107226576012496712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231545396 and 231545405.

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, 863842 + ... + 864109.

It is an arithmetic number, because the mean of its divisors is an integer number (44062776).

Almost surely, 2^231545434 is an apocalyptic number.

231545434 is a deficient number, since it is larger than the sum of its proper divisors (120956774).

231545434 is a wasteful number, since it uses less digits than its factorization.

231545434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728020.

The product of its digits is 28800, while the sum is 31.

The square root of 231545434 is about 15216.6170353334. The cubic root of 231545434 is about 614.0617893091.

The spelling of 231545434 in words is "two hundred thirty-one million, five hundred forty-five thousand, four hundred thirty-four".