15421054 has 16 divisors (see below), whose sum is σ = 25474176. Its totient is φ = 6943000.

The previous prime is 15421033. The next prime is 15421061. The reversal of 15421054 is 45012451.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 922 + ... + 5629.

It is an arithmetic number, because the mean of its divisors is an integer number (1592136).

Almost surely, 2^15421054 is an apocalyptic number.

15421054 is a deficient number, since it is larger than the sum of its proper divisors (10053122).

15421054 is a wasteful number, since it uses less digits than its factorization.

15421054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6671.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 15421054 is about 3926.9649858383. The cubic root of 15421054 is about 248.9075209118.

The spelling of 15421054 in words is "fifteen million, four hundred twenty-one thousand, fifty-four".