15491116 has 12 divisors (see below), whose sum is σ = 27176800. Its totient is φ = 7726320.

The previous prime is 15491107. The next prime is 15491117. The reversal of 15491116 is 61119451.

It is not an unprimeable number, because it can be changed into a prime (15491117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2916 + ... + 6283.

Almost surely, 2^15491116 is an apocalyptic number.

It is an amenable number.

15491116 is a deficient number, since it is larger than the sum of its proper divisors (11685684).

15491116 is a wasteful number, since it uses less digits than its factorization.

15491116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9624 (or 9622 counting only the distinct ones).

The product of its digits is 1080, while the sum is 28.

The square root of 15491116 is about 3935.8755061612. The cubic root of 15491116 is about 249.2839027775.

The spelling of 15491116 in words is "fifteen million, four hundred ninety-one thousand, one hundred sixteen".