22013137 has 2 divisors, whose sum is σ = 22013138. Its totient is φ = 22013136.

The previous prime is 22013081. The next prime is 22013143. The reversal of 22013137 is 73131022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16329681 + 5683456 = 4041^2 + 2384^2 .

It is a cyclic number.

It is not a de Polignac number, because 22013137 - 2¹¹ = 22011089 is a prime.

It is not a weakly prime, because it can be changed into another prime (22010137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006568 + 11006569.

It is an arithmetic number, because the mean of its divisors is an integer number (11006569).

Almost surely, 2^22013137 is an apocalyptic number.

It is an amenable number.

22013137 is a deficient number, since it is larger than the sum of its proper divisors (1).

22013137 is an equidigital number, since it uses as much as digits as its factorization.

22013137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 22013137 is about 4691.8159597324. The cubic root of 22013137 is about 280.2596952870.

Adding to 22013137 its reverse (73131022), we get a palindrome (95144159).

The spelling of 22013137 in words is "twenty-two million, thirteen thousand, one hundred thirty-seven".