15117942 has 32 divisors (see below), whose sum is σ = 34670592. Its totient is φ = 4305024.

The previous prime is 15117937. The next prime is 15117943. The reversal of 15117942 is 24971151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15117943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24603 + ... + 25209.

It is an arithmetic number, because the mean of its divisors is an integer number (1083456).

Almost surely, 2^15117942 is an apocalyptic number.

15117942 is an abundant number, since it is smaller than the sum of its proper divisors (19552650).

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

15117942 is a wasteful number, since it uses less digits than its factorization.

15117942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212.

The product of its digits is 2520, while the sum is 30.

The square root of 15117942 is about 3888.1797797941. The cubic root of 15117942 is about 247.2658984250.

It can be divided in two parts, 1511 and 7942, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 15117942 in words is "fifteen million, one hundred seventeen thousand, nine hundred forty-two".