15996451 has 8 divisors (see below), whose sum is σ = 16315920. Its totient is φ = 15679488.

The previous prime is 15996433. The next prime is 15996467. The reversal of 15996451 is 15469951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15996451 - 2⁹ = 15995939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15996251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16755 + ... + 17683.

It is an arithmetic number, because the mean of its divisors is an integer number (2039490).

Almost surely, 2^15996451 is an apocalyptic number.

15996451 is a deficient number, since it is larger than the sum of its proper divisors (319469).

15996451 is an equidigital number, since it uses as much as digits as its factorization.

15996451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253.

The product of its digits is 48600, while the sum is 40.

The square root of 15996451 is about 3999.5563503969. The cubic root of 15996451 is about 251.9655775187.

The spelling of 15996451 in words is "fifteen million, nine hundred ninety-six thousand, four hundred fifty-one".