164525430 has 32 divisors (see below), whose sum is σ = 395215200. Its totient is φ = 43834112.

The previous prime is 164525423. The next prime is 164525443. The reversal of 164525430 is 34525461.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49666 + ... + 52874.

It is an arithmetic number, because the mean of its divisors is an integer number (12350475).

Almost surely, 2^164525430 is an apocalyptic number.

164525430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164525430 is an abundant number, since it is smaller than the sum of its proper divisors (230689770).

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

164525430 is a wasteful number, since it uses less digits than its factorization.

164525430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4928.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 164525430 is about 12826.7466646847. The cubic root of 164525430 is about 547.9543069330.

The spelling of 164525430 in words is "one hundred sixty-four million, five hundred twenty-five thousand, four hundred thirty".