22939147 has 8 divisors (see below), whose sum is σ = 28599552. Its totient is φ = 17874600.

The previous prime is 22939139. The next prime is 22939183. The reversal of 22939147 is 74193922.

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 22939147 - 2³ = 22939139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22939117) 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 7 ways as a sum of consecutive naturals, for example, 148879 + ... + 149032.

It is an arithmetic number, because the mean of its divisors is an integer number (3574944).

Almost surely, 2^22939147 is an apocalyptic number.

22939147 is a deficient number, since it is larger than the sum of its proper divisors (5660405).

22939147 is a wasteful number, since it uses less digits than its factorization.

22939147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297929.

The product of its digits is 27216, while the sum is 37.

The square root of 22939147 is about 4789.4829574809. The cubic root of 22939147 is about 284.1356680047.

The spelling of 22939147 in words is "twenty-two million, nine hundred thirty-nine thousand, one hundred forty-seven".