15315000261 has 32 divisors (see below), whose sum is σ = 22412851200. Its totient is φ = 9225108480.

The previous prime is 15315000247. The next prime is 15315000353. The reversal of 15315000261 is 16200051351.

15315000261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15315000261 - 2²⁶ = 15247891397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15315000221) 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 31 ways as a sum of consecutive naturals, for example, 4880485 + ... + 4883621.

It is an arithmetic number, because the mean of its divisors is an integer number (700401600).

Almost surely, 2^15315000261 is an apocalyptic number.

15315000261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

15315000261 is a deficient number, since it is larger than the sum of its proper divisors (7097850939).

15315000261 is a wasteful number, since it uses less digits than its factorization.

15315000261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4009.

The product of its (nonzero) digits is 900, while the sum is 24.

The spelling of 15315000261 in words is "fifteen billion, three hundred fifteen million, two hundred sixty-one", and thus it is an aban number.