164129450 has 24 divisors (see below), whose sum is σ = 307316640. Its totient is φ = 65214000.

The previous prime is 164129417. The next prime is 164129453. The reversal of 164129450 is 54921461.

It is not an unprimeable number, because it can be changed into a prime (164129453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3320 + ... + 18419.

It is an arithmetic number, because the mean of its divisors is an integer number (12804860).

Almost surely, 2^164129450 is an apocalyptic number.

164129450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164129450 is a deficient number, since it is larger than the sum of its proper divisors (143187190).

164129450 is a wasteful number, since it uses less digits than its factorization.

164129450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21902 (or 21897 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 164129450 is about 12811.3016512765. The cubic root of 164129450 is about 547.5143480877.

The spelling of 164129450 in words is "one hundred sixty-four million, one hundred twenty-nine thousand, four hundred fifty".