1222395953 has 2 divisors, whose sum is σ = 1222395954. Its totient is φ = 1222395952.

The previous prime is 1222395947. The next prime is 1222395961. The reversal of 1222395953 is 3595932221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1040901169 + 181494784 = 32263^2 + 13472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222395953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1222395953.

It is not a weakly prime, because it can be changed into another prime (1222395983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611197976 + 611197977.

It is an arithmetic number, because the mean of its divisors is an integer number (611197977).

Almost surely, 2^1222395953 is an apocalyptic number.

It is an amenable number.

1222395953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222395953 is an equidigital number, since it uses as much as digits as its factorization.

1222395953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145800, while the sum is 41.

The square root of 1222395953 is about 34962.7795376741. The cubic root of 1222395953 is about 1069.2287664562.

The spelling of 1222395953 in words is "one billion, two hundred twenty-two million, three hundred ninety-five thousand, nine hundred fifty-three".