231461545 has 48 divisors (see below), whose sum is σ = 344822400. Its totient is φ = 149060352.

The previous prime is 231461537. The next prime is 231461551. The reversal of 231461545 is 545164132.

It is a happy number.

It is not a de Polignac number, because 231461545 - 2³ = 231461537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 495402 + ... + 495868.

It is an arithmetic number, because the mean of its divisors is an integer number (7183800).

Almost surely, 2^231461545 is an apocalyptic number.

It is an amenable number.

231461545 is a deficient number, since it is larger than the sum of its proper divisors (113360855).

231461545 is an equidigital number, since it uses as much as digits as its factorization.

231461545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 496 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 231461545 is about 15213.8602925096. The cubic root of 231461545 is about 613.9876220771.

The spelling of 231461545 in words is "two hundred thirty-one million, four hundred sixty-one thousand, five hundred forty-five".