15172042 has 16 divisors (see below), whose sum is σ = 24141312. Its totient is φ = 7135920.

The previous prime is 15172039. The next prime is 15172043. The reversal of 15172042 is 24027151.

It is a happy number.

15172042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (15172043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103 + ... + 5509.

It is an arithmetic number, because the mean of its divisors is an integer number (1508832).

Almost surely, 2^15172042 is an apocalyptic number.

15172042 is a deficient number, since it is larger than the sum of its proper divisors (8969270).

15172042 is a wasteful number, since it uses less digits than its factorization.

15172042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5493.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 15172042 is about 3895.1305498019. The cubic root of 15172042 is about 247.5604967239.

Adding to 15172042 its reverse (24027151), we get a palindrome (39199193).

The spelling of 15172042 in words is "fifteen million, one hundred seventy-two thousand, forty-two".