15997054 has 16 divisors (see below), whose sum is σ = 25145856. Its totient is φ = 7623000.

The previous prime is 15997039. The next prime is 15997057. The reversal of 15997054 is 45079951.

It is a junction number, because it is equal to n+sod(n) for n = 15996998 and 15997016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15997057) by changing a digit.

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, 2229 + ... + 6079.

It is an arithmetic number, because the mean of its divisors is an integer number (1571616).

Almost surely, 2^15997054 is an apocalyptic number.

15997054 is a deficient number, since it is larger than the sum of its proper divisors (9148802).

15997054 is a wasteful number, since it uses less digits than its factorization.

15997054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3951.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 15997054 is about 3999.6317330474. The cubic root of 15997054 is about 251.9687434988.

The spelling of 15997054 in words is "fifteen million, nine hundred ninety-seven thousand, fifty-four".