16125857 has 4 divisors (see below), whose sum is σ = 17591856. Its totient is φ = 14659860.

The previous prime is 16125803. The next prime is 16125869. The reversal of 16125857 is 75852161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16125857 - 2⁶ = 16125793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16125887) 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 3 ways as a sum of consecutive naturals, for example, 732983 + ... + 733004.

It is an arithmetic number, because the mean of its divisors is an integer number (4397964).

Almost surely, 2^16125857 is an apocalyptic number.

It is an amenable number.

16125857 is a deficient number, since it is larger than the sum of its proper divisors (1465999).

16125857 is a wasteful number, since it uses less digits than its factorization.

16125857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465998.

The product of its digits is 16800, while the sum is 35.

The square root of 16125857 is about 4015.7013086135. The cubic root of 16125857 is about 252.6431929686.

The spelling of 16125857 in words is "sixteen million, one hundred twenty-five thousand, eight hundred fifty-seven".