164799631 has 4 divisors (see below), whose sum is σ = 167909112. Its totient is φ = 161690152.

The previous prime is 164799611. The next prime is 164799641. The reversal of 164799631 is 136997461.

It is a happy number.

164799631 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 is a cyclic number.

It is not a de Polignac number, because 164799631 - 2⁵ = 164799599 is a prime.

It is a super-2 number, since 2×164799631² = 54317836755472322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164799601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1554661 + ... + 1554766.

It is an arithmetic number, because the mean of its divisors is an integer number (41977278).

Almost surely, 2^164799631 is an apocalyptic number.

164799631 is a deficient number, since it is larger than the sum of its proper divisors (3109481).

164799631 is an equidigital number, since it uses as much as digits as its factorization.

164799631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3109480.

The product of its digits is 244944, while the sum is 46.

The square root of 164799631 is about 12837.4308566784. The cubic root of 164799631 is about 548.2585481002.

The spelling of 164799631 in words is "one hundred sixty-four million, seven hundred ninety-nine thousand, six hundred thirty-one".