164001898 has 4 divisors (see below), whose sum is σ = 246002850. Its totient is φ = 82000948.

The previous prime is 164001841. The next prime is 164001911. The reversal of 164001898 is 898100461.

It is a happy number.

164001898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 129345129 + 34656769 = 11373^2 + 5887^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41000473 + ... + 41000476.

Almost surely, 2^164001898 is an apocalyptic number.

164001898 is a deficient number, since it is larger than the sum of its proper divisors (82000952).

164001898 is an equidigital number, since it uses as much as digits as its factorization.

164001898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82000951.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 164001898 is about 12806.3225791013. The cubic root of 164001898 is about 547.3724790753.

The spelling of 164001898 in words is "one hundred sixty-four million, one thousand, eight hundred ninety-eight".