164775122 has 4 divisors (see below), whose sum is σ = 247162686. Its totient is φ = 82387560.

The previous prime is 164775109. The next prime is 164775157. The reversal of 164775122 is 221577461.

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., 121859521 + 42915601 = 11039^2 + 6551^2 .

It is a super-2 number, since 2×164775122² = 54301681660229768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41193779 + ... + 41193782.

Almost surely, 2^164775122 is an apocalyptic number.

164775122 is a deficient number, since it is larger than the sum of its proper divisors (82387564).

164775122 is an equidigital number, since it uses as much as digits as its factorization.

164775122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82387563.

The product of its digits is 23520, while the sum is 35.

The square root of 164775122 is about 12836.4762298693. The cubic root of 164775122 is about 548.2313677502.

The spelling of 164775122 in words is "one hundred sixty-four million, seven hundred seventy-five thousand, one hundred twenty-two".