22740137 has 8 divisors (see below), whose sum is σ = 26064000. Its totient is φ = 19435104.

The previous prime is 22740073. The next prime is 22740149. The reversal of 22740137 is 73104722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22740137 - 2⁶ = 22740073 is a prime.

It is a super-2 number, since 2×22740137² = 1034227661557538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22740167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2012 + ... + 7037.

It is an arithmetic number, because the mean of its divisors is an integer number (3258000).

Almost surely, 2^22740137 is an apocalyptic number.

It is an amenable number.

22740137 is a deficient number, since it is larger than the sum of its proper divisors (3323863).

22740137 is an equidigital number, since it uses as much as digits as its factorization.

22740137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9415.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 22740137 is about 4768.6619716646. The cubic root of 22740137 is about 283.3116014089.

Adding to 22740137 its reverse (73104722), we get a palindrome (95844859).

The spelling of 22740137 in words is "twenty-two million, seven hundred forty thousand, one hundred thirty-seven".