667125 has 24 divisors (see below), whose sum is σ = 1204632. Its totient is φ = 355200.

The previous prime is 667123. The next prime is 667127. The reversal of 667125 is 521766.

It is an interprime number because it is at equal distance from previous prime (667123) and next prime (667127).

It can be written as a sum of positive squares in 4 ways, for example, as 15876 + 651249 = 126^2 + 807^2 .

It is not a de Polignac number, because 667125 - 2¹ = 667123 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 829 + ... + 1421.

It is an arithmetic number, because the mean of its divisors is an integer number (50193).

2⁶⁶⁷¹²⁵ is an apocalyptic number.

It is an amenable number.

667125 is a deficient number, since it is larger than the sum of its proper divisors (537507).

667125 is a wasteful number, since it uses less digits than its factorization.

667125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614 (or 601 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 667125 is about 816.7772034037. Note that the first 3 decimals coincide. The cubic root of 667125 is about 87.3780614399.

The spelling of 667125 in words is "six hundred sixty-seven thousand, one hundred twenty-five".