22758149 has 4 divisors (see below), whose sum is σ = 22799136. Its totient is φ = 22717164.

The previous prime is 22758139. The next prime is 22758161. The reversal of 22758149 is 94185722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94185722 = 2 ⋅47092861.

It is a cyclic number.

It is not a de Polignac number, because 22758149 - 2⁴ = 22758133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22758119) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 19649 + ... + 20774.

It is an arithmetic number, because the mean of its divisors is an integer number (5699784).

Almost surely, 2^22758149 is an apocalyptic number.

It is an amenable number.

22758149 is a deficient number, since it is larger than the sum of its proper divisors (40987).

22758149 is an equidigital number, since it uses as much as digits as its factorization.

22758149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40986.

The product of its digits is 40320, while the sum is 38.

The square root of 22758149 is about 4770.5501779145. The cubic root of 22758149 is about 283.3863834537.

The spelling of 22758149 in words is "twenty-two million, seven hundred fifty-eight thousand, one hundred forty-nine".