15072100189 has 4 divisors (see below), whose sum is σ = 15865368640. Its totient is φ = 14278831740.

The previous prime is 15072100157. The next prime is 15072100213. The reversal of 15072100189 is 98100127051.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 15072100189 - 2⁵ = 15072100157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15072100789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396634197 + ... + 396634234.

It is an arithmetic number, because the mean of its divisors is an integer number (3966342160).

Almost surely, 2^15072100189 is an apocalyptic number.

15072100189 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

15072100189 is a deficient number, since it is larger than the sum of its proper divisors (793268451).

15072100189 is an equidigital number, since it uses as much as digits as its factorization.

15072100189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793268450.

The product of its (nonzero) digits is 5040, while the sum is 34.

The spelling of 15072100189 in words is "fifteen billion, seventy-two million, one hundred thousand, one hundred eighty-nine".