16667125 has 8 divisors (see below), whose sum is σ = 20800728. Its totient is φ = 13333600.

The previous prime is 16667117. The next prime is 16667137. The reversal of 16667125 is 52176661.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 167281 + 16499844 = 409^2 + 4062^2 .

It is not a de Polignac number, because 16667125 - 2³ = 16667117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66544 + ... + 66793.

It is an arithmetic number, because the mean of its divisors is an integer number (2600091).

Almost surely, 2^16667125 is an apocalyptic number.

It is an amenable number.

16667125 is a deficient number, since it is larger than the sum of its proper divisors (4133603).

16667125 is an equidigital number, since it uses as much as digits as its factorization.

16667125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133352 (or 133342 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 16667125 is about 4082.5390383927. The cubic root of 16667125 is about 255.4388189441.

The spelling of 16667125 in words is "sixteen million, six hundred sixty-seven thousand, one hundred twenty-five".