16138957 has 8 divisors (see below), whose sum is σ = 16385600. Its totient is φ = 15894144.

The previous prime is 16138949. The next prime is 16138973. The reversal of 16138957 is 75983161.

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

It is a cyclic number.

It is not a de Polignac number, because 16138957 - 2³ = 16138949 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 (16138937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36544 + ... + 36982.

It is an arithmetic number, because the mean of its divisors is an integer number (2048200).

Almost surely, 2^16138957 is an apocalyptic number.

It is an amenable number.

16138957 is a deficient number, since it is larger than the sum of its proper divisors (246643).

16138957 is an equidigital number, since it uses as much as digits as its factorization.

16138957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915.

The product of its digits is 45360, while the sum is 40.

The square root of 16138957 is about 4017.3320748975. The cubic root of 16138957 is about 252.7115868536.

The spelling of 16138957 in words is "sixteen million, one hundred thirty-eight thousand, nine hundred fifty-seven".