164555122 has 4 divisors (see below), whose sum is σ = 246832686. Its totient is φ = 82277560.

The previous prime is 164555117. The next prime is 164555123. The reversal of 164555122 is 221555461.

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., 159037321 + 5517801 = 12611^2 + 2349^2 .

It is not an unprimeable number, because it can be changed into a prime (164555123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41138779 + ... + 41138782.

Almost surely, 2^164555122 is an apocalyptic number.

164555122 is a deficient number, since it is larger than the sum of its proper divisors (82277564).

164555122 is an equidigital number, since it uses as much as digits as its factorization.

164555122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82277563.

The product of its digits is 12000, while the sum is 31.

The square root of 164555122 is about 12827.9040376829. The cubic root of 164555122 is about 547.9872681611.

The spelling of 164555122 in words is "one hundred sixty-four million, five hundred fifty-five thousand, one hundred twenty-two".