231674561 has 8 divisors (see below), whose sum is σ = 242979264. Its totient is φ = 220472560.

The previous prime is 231674557. The next prime is 231674579. The reversal of 231674561 is 165476132.

231674561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 231674561 - 2² = 231674557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231674461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21035 + ... + 30096.

It is an arithmetic number, because the mean of its divisors is an integer number (30372408).

Almost surely, 2^231674561 is an apocalyptic number.

It is an amenable number.

231674561 is a deficient number, since it is larger than the sum of its proper divisors (11304703).

231674561 is a wasteful number, since it uses less digits than its factorization.

231674561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51351.

The product of its digits is 30240, while the sum is 35.

The square root of 231674561 is about 15220.8594041204. The cubic root of 231674561 is about 614.1759169775.

The spelling of 231674561 in words is "two hundred thirty-one million, six hundred seventy-four thousand, five hundred sixty-one".