231261434 has 4 divisors (see below), whose sum is σ = 346892154. Its totient is φ = 115630716.

The previous prime is 231261397. The next prime is 231261449. The reversal of 231261434 is 434162132.

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., 214476025 + 16785409 = 14645^2 + 4097^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57815357 + ... + 57815360.

Almost surely, 2^231261434 is an apocalyptic number.

231261434 is a deficient number, since it is larger than the sum of its proper divisors (115630720).

231261434 is a wasteful number, since it uses less digits than its factorization.

231261434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115630719.

The product of its digits is 3456, while the sum is 26.

The square root of 231261434 is about 15207.2822687027. The cubic root of 231261434 is about 613.8106292466.

The spelling of 231261434 in words is "two hundred thirty-one million, two hundred sixty-one thousand, four hundred thirty-four".