164210090 has 16 divisors (see below), whose sum is σ = 322449120. Its totient is φ = 59712720.

The previous prime is 164210071. The next prime is 164210171. The reversal of 164210090 is 90012461.

It is a happy number.

164210090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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, 746300 + ... + 746519.

It is an arithmetic number, because the mean of its divisors is an integer number (20153070).

Almost surely, 2^164210090 is an apocalyptic number.

164210090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164210090 is a deficient number, since it is larger than the sum of its proper divisors (158239030).

164210090 is a wasteful number, since it uses less digits than its factorization.

164210090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492837.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 164210090 is about 12814.4484859864. The cubic root of 164210090 is about 547.6040015658.

The spelling of 164210090 in words is "one hundred sixty-four million, two hundred ten thousand, ninety".