231461307 has 160 divisors (see below), whose sum is σ = 476720640. Its totient is φ = 108241920.

The previous prime is 231461281. The next prime is 231461333. The reversal of 231461307 is 703164132.

It is an interprime number because it is at equal distance from previous prime (231461281) and next prime (231461333).

It is not a de Polignac number, because 231461307 - 2⁷ = 231461179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (231461357) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 3923044 + ... + 3923102.

It is an arithmetic number, because the mean of its divisors is an integer number (2979504).

Almost surely, 2^231461307 is an apocalyptic number.

231461307 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

231461307 is an abundant number, since it is smaller than the sum of its proper divisors (245259333).

231461307 is a wasteful number, since it uses less digits than its factorization.

231461307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 231461307 is about 15213.8524706926. The cubic root of 231461307 is about 613.9874116331.

The spelling of 231461307 in words is "two hundred thirty-one million, four hundred sixty-one thousand, three hundred seven".