164220514 has 4 divisors (see below), whose sum is σ = 246330774. Its totient is φ = 82110256.

The previous prime is 164220487. The next prime is 164220517. The reversal of 164220514 is 415022461.

It is a happy number.

164220514 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., 154579489 + 9641025 = 12433^2 + 3105^2 .

It is not an unprimeable number, because it can be changed into a prime (164220517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41055127 + ... + 41055130.

Almost surely, 2^164220514 is an apocalyptic number.

164220514 is a deficient number, since it is larger than the sum of its proper divisors (82110260).

164220514 is an equidigital number, since it uses as much as digits as its factorization.

164220514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82110259.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 164220514 is about 12814.8552079218. The cubic root of 164220514 is about 547.6155885585.

Adding to 164220514 its reverse (415022461), we get a palindrome (579242975).

The spelling of 164220514 in words is "one hundred sixty-four million, two hundred twenty thousand, five hundred fourteen".