22851901 has 2 divisors, whose sum is σ = 22851902. Its totient is φ = 22851900.

The previous prime is 22851853. The next prime is 22851911. The reversal of 22851901 is 10915822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21399876 + 1452025 = 4626^2 + 1205^2 .

It is a cyclic number.

It is not a de Polignac number, because 22851901 - 2¹⁷ = 22720829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22851901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22851911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11425950 + 11425951.

It is an arithmetic number, because the mean of its divisors is an integer number (11425951).

Almost surely, 2^22851901 is an apocalyptic number.

It is an amenable number.

22851901 is a deficient number, since it is larger than the sum of its proper divisors (1).

22851901 is an equidigital number, since it uses as much as digits as its factorization.

22851901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 22851901 is about 4780.3661993617. The cubic root of 22851901 is about 283.7749862528.

It can be divided in two parts, 2285 and 1901, that added together give a triangular number (4186 = T₉₁).

The spelling of 22851901 in words is "twenty-two million, eight hundred fifty-one thousand, nine hundred one".