231304134 has 8 divisors (see below), whose sum is σ = 462608280. Its totient is φ = 77101376.

The previous prime is 231304111. The next prime is 231304189. The reversal of 231304134 is 431403132.

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

231304134 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 231304134.

It is a congruent number.

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, 19275339 + ... + 19275350.

It is an arithmetic number, because the mean of its divisors is an integer number (57826035).

Almost surely, 2^231304134 is an apocalyptic number.

231304134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231304134 is a wasteful number, since it uses less digits than its factorization.

231304134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38550694.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 231304134 is about 15208.6861365471. The cubic root of 231304134 is about 613.8484048215.

Adding to 231304134 its reverse (431403132), we get a palindrome (662707266).

The spelling of 231304134 in words is "two hundred thirty-one million, three hundred four thousand, one hundred thirty-four".