231905354 has 4 divisors (see below), whose sum is σ = 347858034. Its totient is φ = 115952676.

The previous prime is 231905339. The next prime is 231905363. The reversal of 231905354 is 453509132.

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., 184226329 + 47679025 = 13573^2 + 6905^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 231905354.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57976337 + ... + 57976340.

Almost surely, 2^231905354 is an apocalyptic number.

231905354 is a deficient number, since it is larger than the sum of its proper divisors (115952680).

231905354 is a wasteful number, since it uses less digits than its factorization.

231905354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115952679.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 231905354 is about 15228.4389876310. The cubic root of 231905354 is about 614.3797955827.

The spelling of 231905354 in words is "two hundred thirty-one million, nine hundred five thousand, three hundred fifty-four".