22070313 has 30 divisors (see below), whose sum is σ = 33949454. Its totient is φ = 14287104.

The previous prime is 22070303. The next prime is 22070339. The reversal of 22070313 is 31307022.

It can be written as a sum of positive squares in 3 ways, for example, as 6953769 + 15116544 = 2637^2 + 3888^2 .

It is not a de Polignac number, because 22070313 - 2⁴ = 22070297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22070303) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 227481 + ... + 227577.

Almost surely, 2^22070313 is an apocalyptic number.

It is an amenable number.

22070313 is a deficient number, since it is larger than the sum of its proper divisors (11879141).

22070313 is an frugal number, since it uses more digits than its factorization.

22070313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 22070313 is about 4697.9051714567. The cubic root of 22070313 is about 280.5021304422.

Adding to 22070313 its reverse (31307022), we get a palindrome (53377335).

The spelling of 22070313 in words is "twenty-two million, seventy thousand, three hundred thirteen".