1399099733 has 2 divisors, whose sum is σ = 1399099734. Its totient is φ = 1399099732.

The previous prime is 1399099699. The next prime is 1399099739. The reversal of 1399099733 is 3379909931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1020291364 + 378808369 = 31942^2 + 19463^2 .

It is a cyclic number.

It is not a de Polignac number, because 1399099733 - 2¹⁰ = 1399098709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1399099739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 699549866 + 699549867.

It is an arithmetic number, because the mean of its divisors is an integer number (699549867).

Almost surely, 2^1399099733 is an apocalyptic number.

It is an amenable number.

1399099733 is a deficient number, since it is larger than the sum of its proper divisors (1).

1399099733 is an equidigital number, since it uses as much as digits as its factorization.

1399099733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1240029, while the sum is 53.

The square root of 1399099733 is about 37404.5416092752. The cubic root of 1399099733 is about 1118.4491004885.

The spelling of 1399099733 in words is "one billion, three hundred ninety-nine million, ninety-nine thousand, seven hundred thirty-three".