22354957 has 2 divisors, whose sum is σ = 22354958. Its totient is φ = 22354956.

The previous prime is 22354951. The next prime is 22354973. The reversal of 22354957 is 75945322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22335076 + 19881 = 4726^2 + 141^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22354957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22354951) 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 as a sum of consecutive naturals, namely, 11177478 + 11177479.

It is an arithmetic number, because the mean of its divisors is an integer number (11177479).

Almost surely, 2^22354957 is an apocalyptic number.

It is an amenable number.

22354957 is a deficient number, since it is larger than the sum of its proper divisors (1).

22354957 is an equidigital number, since it uses as much as digits as its factorization.

22354957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 37.

The square root of 22354957 is about 4728.1028965115. The cubic root of 22354957 is about 281.7028751852.

The spelling of 22354957 in words is "twenty-two million, three hundred fifty-four thousand, nine hundred fifty-seven".