164435902 has 8 divisors (see below), whose sum is σ = 246889512. Its totient is φ = 82139400.

The previous prime is 164435857. The next prime is 164435903. The reversal of 164435902 is 209534461.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×164435902³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164435903) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 36624 + ... + 40867.

It is an arithmetic number, because the mean of its divisors is an integer number (30861189).

Almost surely, 2^164435902 is an apocalyptic number.

164435902 is a deficient number, since it is larger than the sum of its proper divisors (82453610).

164435902 is a wasteful number, since it uses less digits than its factorization.

164435902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78554.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 164435902 is about 12823.2562947170. The cubic root of 164435902 is about 547.8548974695.

The spelling of 164435902 in words is "one hundred sixty-four million, four hundred thirty-five thousand, nine hundred two".