1959222497 has 2 divisors, whose sum is σ = 1959222498. Its totient is φ = 1959222496.

The previous prime is 1959222469. The next prime is 1959222607. The reversal of 1959222497 is 7942229591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1678458961 + 280763536 = 40969^2 + 16756^2 .

It is an emirp because it is prime and its reverse (7942229591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1959222497 - 2¹⁶ = 1959156961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1959222407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 979611248 + 979611249.

It is an arithmetic number, because the mean of its divisors is an integer number (979611249).

Almost surely, 2^1959222497 is an apocalyptic number.

It is an amenable number.

1959222497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1959222497 is an equidigital number, since it uses as much as digits as its factorization.

1959222497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 50.

The square root of 1959222497 is about 44263.1053700483. The cubic root of 1959222497 is about 1251.2994480397.

The spelling of 1959222497 in words is "one billion, nine hundred fifty-nine million, two hundred twenty-two thousand, four hundred ninety-seven".