16957149 has 32 divisors (see below), whose sum is σ = 25740288. Its totient is φ = 9840000.

The previous prime is 16957133. The next prime is 16957151. The reversal of 16957149 is 94175961.

16957149 = 623² + 624² + ... + 663².

It is not a de Polignac number, because 16957149 - 2⁴ = 16957133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16957149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16957159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112224 + ... + 112374.

It is an arithmetic number, because the mean of its divisors is an integer number (804384).

Almost surely, 2^16957149 is an apocalyptic number.

It is an amenable number.

16957149 is a deficient number, since it is larger than the sum of its proper divisors (8783139).

16957149 is a wasteful number, since it uses less digits than its factorization.

16957149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289.

The product of its digits is 68040, while the sum is 42.

The square root of 16957149 is about 4117.9058998476. The cubic root of 16957149 is about 256.9119341758.

The spelling of 16957149 in words is "sixteen million, nine hundred fifty-seven thousand, one hundred forty-nine".