231153434 has 4 divisors (see below), whose sum is σ = 346730154. Its totient is φ = 115576716.

The previous prime is 231153421. The next prime is 231153451. The reversal of 231153434 is 434351132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 214710409 + 16443025 = 14653^2 + 4055^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57788357 + ... + 57788360.

Almost surely, 2^231153434 is an apocalyptic number.

231153434 is a deficient number, since it is larger than the sum of its proper divisors (115576720).

231153434 is a wasteful number, since it uses less digits than its factorization.

231153434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115576719.

The product of its digits is 4320, while the sum is 26.

The square root of 231153434 is about 15203.7309236911. The cubic root of 231153434 is about 613.7150637085.

The spelling of 231153434 in words is "two hundred thirty-one million, one hundred fifty-three thousand, four hundred thirty-four".