164562290 has 16 divisors (see below), whose sum is σ = 303101568. Its totient is φ = 64293936.

The previous prime is 164562289. The next prime is 164562313. The reversal of 164562290 is 92265461.

It is a happy number.

164562290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 164562290.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190922 + ... + 191781.

It is an arithmetic number, because the mean of its divisors is an integer number (18943848).

Almost surely, 2^164562290 is an apocalyptic number.

164562290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164562290 is a deficient number, since it is larger than the sum of its proper divisors (138539278).

164562290 is a wasteful number, since it uses less digits than its factorization.

164562290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382753.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 164562290 is about 12828.1834255673. The cubic root of 164562290 is about 547.9952247972.

The spelling of 164562290 in words is "one hundred sixty-four million, five hundred sixty-two thousand, two hundred ninety".