22650137 has 4 divisors (see below), whose sum is σ = 23982516. Its totient is φ = 21317760.

The previous prime is 22650127. The next prime is 22650143. The reversal of 22650137 is 73105622.

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 19175641 + 3474496 = 4379^2 + 1864^2 .

It is a cyclic number.

It is not a de Polignac number, because 22650137 - 2¹⁴ = 22633753 is a prime.

It is a super-2 number, since 2×22650137² = 1026057412237538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22650127) 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, 666164 + ... + 666197.

It is an arithmetic number, because the mean of its divisors is an integer number (5995629).

Almost surely, 2^22650137 is an apocalyptic number.

It is an amenable number.

22650137 is a deficient number, since it is larger than the sum of its proper divisors (1332379).

22650137 is a wasteful number, since it uses less digits than its factorization.

22650137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332378.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 22650137 is about 4759.2160068650. The cubic root of 22650137 is about 282.9373474827.

Adding to 22650137 its reverse (73105622), we get a palindrome (95755759).

The spelling of 22650137 in words is "twenty-two million, six hundred fifty thousand, one hundred thirty-seven".