16894151 has 2 divisors, whose sum is σ = 16894152. Its totient is φ = 16894150.

The previous prime is 16894139. The next prime is 16894159. The reversal of 16894151 is 15149861.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16894151 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16894159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8447075 + 8447076.

It is an arithmetic number, because the mean of its divisors is an integer number (8447076).

Almost surely, 2^16894151 is an apocalyptic number.

16894151 is a deficient number, since it is larger than the sum of its proper divisors (1).

16894151 is an equidigital number, since it uses as much as digits as its factorization.

16894151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 35.

The square root of 16894151 is about 4110.2495058086. The cubic root of 16894151 is about 256.5933856873.

The spelling of 16894151 in words is "sixteen million, eight hundred ninety-four thousand, one hundred fifty-one".