22990951 has 2 divisors, whose sum is σ = 22990952. Its totient is φ = 22990950.

The previous prime is 22990927. The next prime is 22990967. The reversal of 22990951 is 15909922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22990951 - 2¹⁹ = 22466663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22990951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22990921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11495475 + 11495476.

It is an arithmetic number, because the mean of its divisors is an integer number (11495476).

Almost surely, 2^22990951 is an apocalyptic number.

22990951 is a deficient number, since it is larger than the sum of its proper divisors (1).

22990951 is an equidigital number, since it uses as much as digits as its factorization.

22990951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 22990951 is about 4794.8880070342. Note that the first 3 decimals coincide. The cubic root of 22990951 is about 284.3493972200.

The spelling of 22990951 in words is "twenty-two million, nine hundred ninety thousand, nine hundred fifty-one".