164949854 has 16 divisors (see below), whose sum is σ = 257688000. Its totient is φ = 79092384.

The previous prime is 164949839. The next prime is 164949857. The reversal of 164949854 is 458949461.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164949857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902 + ... + 18185.

It is an arithmetic number, because the mean of its divisors is an integer number (16105500).

Almost surely, 2^164949854 is an apocalyptic number.

164949854 is a deficient number, since it is larger than the sum of its proper divisors (92738146).

164949854 is a wasteful number, since it uses less digits than its factorization.

164949854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19267.

The product of its digits is 1244160, while the sum is 50.

The square root of 164949854 is about 12843.2804999346. The cubic root of 164949854 is about 548.4250857529.

The spelling of 164949854 in words is "one hundred sixty-four million, nine hundred forty-nine thousand, eight hundred fifty-four".