16799157 has 20 divisors (see below), whose sum is σ = 25273996. Its totient is φ = 11119680.

The previous prime is 16799143. The next prime is 16799171. The reversal of 16799157 is 75199761.

It is an interprime number because it is at equal distance from previous prime (16799143) and next prime (16799171).

It can be written as a sum of positive squares in 2 ways, for example, as 10850436 + 5948721 = 3294^2 + 2439^2 .

It is not a de Polignac number, because 16799157 - 2⁴ = 16799141 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 (16799557) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12057 + ... + 13377.

Almost surely, 2^16799157 is an apocalyptic number.

It is an amenable number.

16799157 is a deficient number, since it is larger than the sum of its proper divisors (8474839).

16799157 is a wasteful number, since it uses less digits than its factorization.

16799157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490 (or 1481 counting only the distinct ones).

The product of its digits is 119070, while the sum is 45.

The square root of 16799157 is about 4098.6774696236. The cubic root of 16799157 is about 256.1115490836. Note that the first 3 decimals are identical.

The spelling of 16799157 in words is "sixteen million, seven hundred ninety-nine thousand, one hundred fifty-seven".