1599917953 has 2 divisors, whose sum is σ = 1599917954. Its totient is φ = 1599917952.

The previous prime is 1599917909. The next prime is 1599917981. The reversal of 1599917953 is 3597199951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1515700624 + 84217329 = 38932^2 + 9177^2 .

It is a cyclic number.

It is not a de Polignac number, because 1599917953 - 2¹³ = 1599909761 is a prime.

It is not a weakly prime, because it can be changed into another prime (1599917993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 799958976 + 799958977.

It is an arithmetic number, because the mean of its divisors is an integer number (799958977).

Almost surely, 2^1599917953 is an apocalyptic number.

It is an amenable number.

1599917953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1599917953 is an equidigital number, since it uses as much as digits as its factorization.

1599917953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3444525, while the sum is 58.

The square root of 1599917953 is about 39998.9743993518. The cubic root of 1599917953 is about 1169.5871027031.

The spelling of 1599917953 in words is "one billion, five hundred ninety-nine million, nine hundred seventeen thousand, nine hundred fifty-three".