107145515631 has 32 divisors (see below), whose sum is σ = 178144685568. Its totient is φ = 55649802240.

The previous prime is 107145515621. The next prime is 107145515657. The reversal of 107145515631 is 136515541701.

It is not a de Polignac number, because 107145515631 - 2¹⁰ = 107145514607 is a prime.

It is a super-2 number, since 2×107145515631² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 107145515631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107145515621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1313371 + ... + 1392563.

It is an arithmetic number, because the mean of its divisors is an integer number (5567021424).

Almost surely, 2^107145515631 is an apocalyptic number.

107145515631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

107145515631 is a deficient number, since it is larger than the sum of its proper divisors (70999169937).

107145515631 is a wasteful number, since it uses less digits than its factorization.

107145515631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85071.

The product of its (nonzero) digits is 63000, while the sum is 39.

The spelling of 107145515631 in words is "one hundred seven billion, one hundred forty-five million, five hundred fifteen thousand, six hundred thirty-one".