22140513 has 32 divisors (see below), whose sum is σ = 34663680. Its totient is φ = 13939200.

The previous prime is 22140509. The next prime is 22140523. The reversal of 22140513 is 31504122.

It is not a de Polignac number, because 22140513 - 2² = 22140509 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22140523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62545 + ... + 62897.

It is an arithmetic number, because the mean of its divisors is an integer number (1083240).

Almost surely, 2^22140513 is an apocalyptic number.

22140513 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

22140513 is a deficient number, since it is larger than the sum of its proper divisors (12523167).

22140513 is a wasteful number, since it uses less digits than its factorization.

22140513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 22140513 is about 4705.3706549006. The cubic root of 22140513 is about 280.7992174352.

Adding to 22140513 its reverse (31504122), we get a palindrome (53644635).

The spelling of 22140513 in words is "twenty-two million, one hundred forty thousand, five hundred thirteen".