22313765 has 4 divisors (see below), whose sum is σ = 26776524. Its totient is φ = 17851008.

The previous prime is 22313761. The next prime is 22313777. The reversal of 22313765 is 56731322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17447329 + 4866436 = 4177^2 + 2206^2 .

It is a cyclic number.

It is not a de Polignac number, because 22313765 - 2² = 22313761 is a prime.

It is a super-3 number, since 3×22313765³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22313761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2231372 + ... + 2231381.

It is an arithmetic number, because the mean of its divisors is an integer number (6694131).

Almost surely, 2^22313765 is an apocalyptic number.

It is an amenable number.

22313765 is a deficient number, since it is larger than the sum of its proper divisors (4462759).

22313765 is an equidigital number, since it uses as much as digits as its factorization.

22313765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4462758.

The product of its digits is 7560, while the sum is 29.

The square root of 22313765 is about 4723.7448068243. The cubic root of 22313765 is about 281.5297437199.

The spelling of 22313765 in words is "twenty-two million, three hundred thirteen thousand, seven hundred sixty-five".