164291522 has 4 divisors (see below), whose sum is σ = 246437286. Its totient is φ = 82145760.

The previous prime is 164291521. The next prime is 164291527. The reversal of 164291522 is 225192461.

164291522 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, and also an emirpimes, since its reverse is a distinct semiprime: 225192461 = 13 ⋅17322497.

It can be written as a sum of positive squares in only one way, i.e., 123854641 + 40436881 = 11129^2 + 6359^2 .

It is not an unprimeable number, because it can be changed into a prime (164291521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41072879 + ... + 41072882.

Almost surely, 2^164291522 is an apocalyptic number.

164291522 is a deficient number, since it is larger than the sum of its proper divisors (82145764).

164291522 is an equidigital number, since it uses as much as digits as its factorization.

164291522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82145763.

The product of its digits is 8640, while the sum is 32.

The square root of 164291522 is about 12817.6254431154. The cubic root of 164291522 is about 547.6945057890.

The spelling of 164291522 in words is "one hundred sixty-four million, two hundred ninety-one thousand, five hundred twenty-two".