22942151 has 2 divisors, whose sum is σ = 22942152. Its totient is φ = 22942150.

The previous prime is 22942141. The next prime is 22942181. The reversal of 22942151 is 15124922.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22942151 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22942151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22942141) 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 as a sum of consecutive naturals, namely, 11471075 + 11471076.

It is an arithmetic number, because the mean of its divisors is an integer number (11471076).

Almost surely, 2^22942151 is an apocalyptic number.

22942151 is a deficient number, since it is larger than the sum of its proper divisors (1).

22942151 is an equidigital number, since it uses as much as digits as its factorization.

22942151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 26.

The square root of 22942151 is about 4789.7965510030. The cubic root of 22942151 is about 284.1480704753.

It can be divided in two parts, 2294 and 2151, that multiplied together give a palindrome (4934394).

The spelling of 22942151 in words is "twenty-two million, nine hundred forty-two thousand, one hundred fifty-one".