15961146 has 16 divisors (see below), whose sum is σ = 31963008. Its totient is φ = 5313600.

The previous prime is 15961139. The next prime is 15961157. The reversal of 15961146 is 64116951.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6306 + ... + 8466.

It is an arithmetic number, because the mean of its divisors is an integer number (1997688).

Almost surely, 2^15961146 is an apocalyptic number.

15961146 is an abundant number, since it is smaller than the sum of its proper divisors (16001862).

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

15961146 is a wasteful number, since it uses less digits than its factorization.

15961146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3397.

The product of its digits is 6480, while the sum is 33.

The square root of 15961146 is about 3995.1402979120. The cubic root of 15961146 is about 251.7800739314.

The spelling of 15961146 in words is "fifteen million, nine hundred sixty-one thousand, one hundred forty-six".