315372145428 has 36 divisors (see below), whose sum is σ = 806147908020. Its totient is φ = 103942878336.

The previous prime is 315372145421. The next prime is 315372145471. The reversal of 315372145428 is 824541273513.

315372145428 is a `hidden beast` number, since 3 + 1 + 5 + 3 + 7 + 214 + 5 + 428 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 41464362384 + 273907783044 = 203628^2 + 523362^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×315372145428² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315372145421) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 49212175 + ... + 49218582.

It is an arithmetic number, because the mean of its divisors is an integer number (22392997445).

Almost surely, 2^315372145428 is an apocalyptic number.

It is an amenable number.

315372145428 is an abundant number, since it is smaller than the sum of its proper divisors (490775762592).

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

315372145428 is a wasteful number, since it uses less digits than its factorization.

315372145428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98430856 (or 98430851 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The spelling of 315372145428 in words is "three hundred fifteen billion, three hundred seventy-two million, one hundred forty-five thousand, four hundred twenty-eight".