164520750 has 32 divisors (see below), whose sum is σ = 410645664. Its totient is φ = 43872000.

The previous prime is 164520743. The next prime is 164520761. The reversal of 164520750 is 57025461.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108931 + ... + 110430.

It is an arithmetic number, because the mean of its divisors is an integer number (12832677).

Almost surely, 2^164520750 is an apocalyptic number.

164520750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164520750 is an abundant number, since it is smaller than the sum of its proper divisors (246124914).

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

164520750 is a wasteful number, since it uses less digits than its factorization.

164520750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219381 (or 219371 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 164520750 is about 12826.5642320927. The cubic root of 164520750 is about 547.9491112814.

The spelling of 164520750 in words is "one hundred sixty-four million, five hundred twenty thousand, seven hundred fifty".