15131545146 has 32 divisors (see below), whose sum is σ = 33733814400. Its totient is φ = 5027624640.

The previous prime is 15131545133. The next prime is 15131545183. The reversal of 15131545146 is 64154513151.

15131545146 is a `hidden beast` number, since 1 + 5 + 131 + 5 + 4 + 514 + 6 = 666.

15131545146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15131545146² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 15131545146.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433711 + ... + 467298.

It is an arithmetic number, because the mean of its divisors is an integer number (1054181700).

Almost surely, 2^15131545146 is an apocalyptic number.

15131545146 is an abundant number, since it is smaller than the sum of its proper divisors (18602269254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15131545146 is a wasteful number, since it uses less digits than its factorization.

15131545146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901331 (or 901325 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The spelling of 15131545146 in words is "fifteen billion, one hundred thirty-one million, five hundred forty-five thousand, one hundred forty-six".