220065739 has 4 divisors (see below), whose sum is σ = 221523280. Its totient is φ = 218608200.

The previous prime is 220065691. The next prime is 220065749. The reversal of 220065739 is 937560022.

It is a happy number.

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 220065739 - 2²⁵ = 186511307 is a prime.

It is a super-2 number, since 2×220065739² = 96857858963232242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220065749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728544 + ... + 728845.

It is an arithmetic number, because the mean of its divisors is an integer number (55380820).

Almost surely, 2^220065739 is an apocalyptic number.

220065739 is a deficient number, since it is larger than the sum of its proper divisors (1457541).

220065739 is a wasteful number, since it uses less digits than its factorization.

220065739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457540.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 220065739 is about 14834.6128699066. The cubic root of 220065739 is about 603.7411970705.

The spelling of 220065739 in words is "two hundred twenty million, sixty-five thousand, seven hundred thirty-nine".