1399091753 has 2 divisors, whose sum is σ = 1399091754. Its totient is φ = 1399091752.

The previous prime is 1399091737. The next prime is 1399091761. The reversal of 1399091753 is 3571909931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1275704089 + 123387664 = 35717^2 + 11108^2 .

It is a cyclic number.

It is not a de Polignac number, because 1399091753 - 2⁴ = 1399091737 is a prime.

It is a super-2 number, since 2×1399091753² = 3914915466625226018, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1399091698 and 1399091707.

It is not a weakly prime, because it can be changed into another prime (1399091053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 699545876 + 699545877.

It is an arithmetic number, because the mean of its divisors is an integer number (699545877).

Almost surely, 2^1399091753 is an apocalyptic number.

It is an amenable number.

1399091753 is a deficient number, since it is larger than the sum of its proper divisors (1).

1399091753 is an equidigital number, since it uses as much as digits as its factorization.

1399091753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 229635, while the sum is 47.

The square root of 1399091753 is about 37404.4349375846. The cubic root of 1399091753 is about 1118.4469740638.

The spelling of 1399091753 in words is "one billion, three hundred ninety-nine million, ninety-one thousand, seven hundred fifty-three".