231461501 has 4 divisors (see below), whose sum is σ = 232455132. Its totient is φ = 230467872.

The previous prime is 231461479. The next prime is 231461509. The reversal of 231461501 is 105164132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22080601 + 209380900 = 4699^2 + 14470^2 .

It is a cyclic number.

It is not a de Polignac number, because 231461501 - 2²⁶ = 164352637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231461509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496466 + ... + 496931.

It is an arithmetic number, because the mean of its divisors is an integer number (58113783).

Almost surely, 2^231461501 is an apocalyptic number.

It is an amenable number.

231461501 is a deficient number, since it is larger than the sum of its proper divisors (993631).

231461501 is an equidigital number, since it uses as much as digits as its factorization.

231461501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993630.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 231461501 is about 15213.8588464597. The cubic root of 231461501 is about 613.9875831715.

The spelling of 231461501 in words is "two hundred thirty-one million, four hundred sixty-one thousand, five hundred one".