164490507 has 10 divisors (see below), whose sum is σ = 245720508. Its totient is φ = 109660284.

The previous prime is 164490497. The next prime is 164490517. The reversal of 164490507 is 705094461.

164490507 is a `hidden beast` number, since 1 + 64 + 4 + 90 + 507 = 666.

It is an interprime number because it is at equal distance from previous prime (164490497) and next prime (164490517).

It is not a de Polignac number, because 164490507 - 2⁷ = 164490379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164490517) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1015293 + ... + 1015454.

Almost surely, 2^164490507 is an apocalyptic number.

164490507 is a deficient number, since it is larger than the sum of its proper divisors (81230001).

164490507 is an equidigital number, since it uses as much as digits as its factorization.

164490507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030759 (or 2030750 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 164490507 is about 12825.3852573714. The cubic root of 164490507 is about 547.9155336719.

The spelling of 164490507 in words is "one hundred sixty-four million, four hundred ninety thousand, five hundred seven".