15115959 has 12 divisors (see below), whose sum is σ = 22002552. Its totient is φ = 9999600.

The previous prime is 15115957. The next prime is 15115979. The reversal of 15115959 is 95951151.

It is not a de Polignac number, because 15115959 - 2¹ = 15115957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15115951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5232 + ... + 7589.

It is an arithmetic number, because the mean of its divisors is an integer number (1833546).

Almost surely, 2^15115959 is an apocalyptic number.

15115959 is a deficient number, since it is larger than the sum of its proper divisors (6886593).

15115959 is a wasteful number, since it uses less digits than its factorization.

15115959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12958 (or 12955 counting only the distinct ones).

The product of its digits is 10125, while the sum is 36.

The square root of 15115959 is about 3887.9247677907. The cubic root of 15115959 is about 247.2550867745.

It can be divided in two parts, 151 and 15959, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 15115959 in words is "fifteen million, one hundred fifteen thousand, nine hundred fifty-nine".