15013640149 has 4 divisors (see below), whose sum is σ = 15666407136. Its totient is φ = 14360873164.

The previous prime is 15013640129. The next prime is 15013640171. The reversal of 15013640149 is 94104631051.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94104631051 = 109 ⋅863345239.

It is a cyclic number.

It is not a de Polignac number, because 15013640149 - 2⁷ = 15013640021 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 (15013640129) 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, 326383459 + ... + 326383504.

It is an arithmetic number, because the mean of its divisors is an integer number (3916601784).

Almost surely, 2^15013640149 is an apocalyptic number.

It is an amenable number.

15013640149 is a deficient number, since it is larger than the sum of its proper divisors (652766987).

15013640149 is an equidigital number, since it uses as much as digits as its factorization.

15013640149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652766986.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 15013640149 in words is "fifteen billion, thirteen million, six hundred forty thousand, one hundred forty-nine".