16872451 has 2 divisors, whose sum is σ = 16872452. Its totient is φ = 16872450.

The previous prime is 16872439. The next prime is 16872467. The reversal of 16872451 is 15427861.

It is a weak prime.

It is an emirp because it is prime and its reverse (15427861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16872451 - 2⁵ = 16872419 is a prime.

It is not a weakly prime, because it can be changed into another prime (16872421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8436225 + 8436226.

It is an arithmetic number, because the mean of its divisors is an integer number (8436226).

Almost surely, 2^16872451 is an apocalyptic number.

16872451 is a deficient number, since it is larger than the sum of its proper divisors (1).

16872451 is an equidigital number, since it uses as much as digits as its factorization.

16872451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 34.

The square root of 16872451 is about 4107.6089151719. The cubic root of 16872451 is about 256.4834765995.

The spelling of 16872451 in words is "sixteen million, eight hundred seventy-two thousand, four hundred fifty-one".