22613145 has 32 divisors (see below), whose sum is σ = 38880000. Its totient is φ = 11182080.

The previous prime is 22613131. The next prime is 22613159. The reversal of 22613145 is 54131622.

It is an interprime number because it is at equal distance from previous prime (22613131) and next prime (22613159).

It is not a de Polignac number, because 22613145 - 2¹⁵ = 22580377 is a prime.

It is a super-2 number, since 2×22613145² = 1022708653582050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17481 + ... + 18729.

It is an arithmetic number, because the mean of its divisors is an integer number (1215000).

Almost surely, 2^22613145 is an apocalyptic number.

It is an amenable number.

22613145 is a deficient number, since it is larger than the sum of its proper divisors (16266855).

22613145 is a wasteful number, since it uses less digits than its factorization.

22613145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345.

The product of its digits is 1440, while the sum is 24.

The square root of 22613145 is about 4755.3280643926. The cubic root of 22613145 is about 282.7832333094.

Adding to 22613145 its reverse (54131622), we get a palindrome (76744767).

The spelling of 22613145 in words is "twenty-two million, six hundred thirteen thousand, one hundred forty-five".