16972151 has 8 divisors (see below), whose sum is σ = 19422624. Its totient is φ = 14528160.

The previous prime is 16972139. The next prime is 16972157. The reversal of 16972151 is 15127961.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16972151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16972157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7241 + ... + 9293.

It is an arithmetic number, because the mean of its divisors is an integer number (2427828).

Almost surely, 2^16972151 is an apocalyptic number.

16972151 is a deficient number, since it is larger than the sum of its proper divisors (2450473).

16972151 is a wasteful number, since it uses less digits than its factorization.

16972151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3241.

The product of its digits is 3780, while the sum is 32.

The square root of 16972151 is about 4119.7270540656. The cubic root of 16972151 is about 256.9876752254.

The spelling of 16972151 in words is "sixteen million, nine hundred seventy-two thousand, one hundred fifty-one".