15172530722140 has 48 divisors (see below), whose sum is σ = 35277677979264. Its totient is φ = 5434936372800.

The previous prime is 15172530722131. The next prime is 15172530722191. The reversal of 15172530722140 is 4122703527151.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15172530722093 and 15172530722102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514657266 + ... + 514686745.

It is an arithmetic number, because the mean of its divisors is an integer number (734951624568).

Almost surely, 2^{15172530722140} is an apocalyptic number.

15172530722140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15172530722140 is an abundant number, since it is smaller than the sum of its proper divisors (20105147257124).

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

15172530722140 is a wasteful number, since it uses less digits than its factorization.

15172530722140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029344098 (or 1029344096 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The spelling of 15172530722140 in words is "fifteen trillion, one hundred seventy-two billion, five hundred thirty million, seven hundred twenty-two thousand, one hundred forty".