664152 has 16 divisors (see below), whose sum is σ = 1660440. Its totient is φ = 221376.

The previous prime is 664151. The next prime is 664177. The reversal of 664152 is 251466.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 27673 = 664152 / (6 + 6 + 4 + 1 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13813 + ... + 13860.

2⁶⁶⁴¹⁵² is an apocalyptic number.

It is an amenable number.

664152 is an abundant number, since it is smaller than the sum of its proper divisors (996288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

664152 is a wasteful number, since it uses less digits than its factorization.

664152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27682 (or 27678 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 664152 is about 814.9552134934. The cubic root of 664152 is about 87.2480698965.

Subtracting from 664152 its sum of digits (24), we obtain a triangular number (664128 = T₁₁₅₂).

Subtracting from 664152 its reverse (251466), we obtain a triangular number (412686 = T₉₀₈).

The spelling of 664152 in words is "six hundred sixty-four thousand, one hundred fifty-two".