231465141 has 8 divisors (see below), whose sum is σ = 342911360. Its totient is φ = 154310076.

The previous prime is 231465139. The next prime is 231465167. The reversal of 231465141 is 141564132.

It is a happy number.

231465141 is a `hidden beast` number, since 2 + 3 + 1 + 4 + 651 + 4 + 1 = 666.

It is not a de Polignac number, because 231465141 - 2¹ = 231465139 is a prime.

It is a super-2 number, since 2×231465141² = 107152222996299762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 8572783 = 231465141 / (2 + 3 + 1 + 4 + 6 + 5 + 1 + 4 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231465121) 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, 4286365 + ... + 4286418.

It is an arithmetic number, because the mean of its divisors is an integer number (42863920).

Almost surely, 2^231465141 is an apocalyptic number.

It is an amenable number.

231465141 is a deficient number, since it is larger than the sum of its proper divisors (111446219).

231465141 is an equidigital number, since it uses as much as digits as its factorization.

231465141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8572792 (or 8572786 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 231465141 is about 15213.9784737589. The cubic root of 231465141 is about 613.9908017098.

The spelling of 231465141 in words is "two hundred thirty-one million, four hundred sixty-five thousand, one hundred forty-one".