15457140228231 has 24 divisors (see below), whose sum is σ = 24348800374080. Its totient is φ = 9391680133056.

The previous prime is 15457140228193. The next prime is 15457140228239. The reversal of 15457140228231 is 13282204175451.

It is a happy number.

15457140228231 is a `hidden beast` number, since 1 + 5 + 4 + 5 + 7 + 1 + 402 + 2 + 8 + 231 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-15457140228231 is a prime.

It is a super-2 number, since 2×15457140228231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15457140228239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 836144616 + ... + 836163101.

It is an arithmetic number, because the mean of its divisors is an integer number (1014533348920).

Almost surely, 2^{15457140228231} is an apocalyptic number.

15457140228231 is a deficient number, since it is larger than the sum of its proper divisors (8891660145849).

15457140228231 is a wasteful number, since it uses less digits than its factorization.

15457140228231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672307815 (or 1672307812 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 15457140228231 in words is "fifteen trillion, four hundred fifty-seven billion, one hundred forty million, two hundred twenty-eight thousand, two hundred thirty-one".