22435901 has 2 divisors, whose sum is σ = 22435902. Its totient is φ = 22435900.

The previous prime is 22435891. The next prime is 22435913. The reversal of 22435901 is 10953422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22372900 + 63001 = 4730^2 + 251^2 .

It is a cyclic number.

It is not a de Polignac number, because 22435901 - 2¹⁸ = 22173757 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_1414862 and since 22435901 and 1414862 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22435951) 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, 11217950 + 11217951.

It is an arithmetic number, because the mean of its divisors is an integer number (11217951).

Almost surely, 2^22435901 is an apocalyptic number.

It is an amenable number.

22435901 is a deficient number, since it is larger than the sum of its proper divisors (1).

22435901 is an equidigital number, since it uses as much as digits as its factorization.

22435901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 22435901 is about 4736.6550433824. The cubic root of 22435901 is about 282.0424671554.

The spelling of 22435901 in words is "twenty-two million, four hundred thirty-five thousand, nine hundred one".