105515531512 has 32 divisors (see below), whose sum is σ = 200414954880. Its totient is φ = 52072748640.

The previous prime is 105515531503. The next prime is 105515531519. The reversal of 105515531512 is 215135515501.

It is a super-2 number, since 2×105515531512² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105515531519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631087 + ... + 780577.

It is an arithmetic number, because the mean of its divisors is an integer number (6262967340).

Almost surely, 2^105515531512 is an apocalyptic number.

It is an amenable number.

105515531512 is a deficient number, since it is larger than the sum of its proper divisors (94899423368).

105515531512 is a wasteful number, since it uses less digits than its factorization.

105515531512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150643 (or 150639 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 34.

The spelling of 105515531512 in words is "one hundred five billion, five hundred fifteen million, five hundred thirty-one thousand, five hundred twelve".