1399184057 has 2 divisors, whose sum is σ = 1399184058. Its totient is φ = 1399184056.

The previous prime is 1399184011. The next prime is 1399184069. The reversal of 1399184057 is 7504819931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1358364736 + 40819321 = 36856^2 + 6389^2 .

It is a cyclic number.

It is not a de Polignac number, because 1399184057 - 2⁶ = 1399183993 is a prime.

It is not a weakly prime, because it can be changed into another prime (1399183057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 699592028 + 699592029.

It is an arithmetic number, because the mean of its divisors is an integer number (699592029).

Almost surely, 2^1399184057 is an apocalyptic number.

It is an amenable number.

1399184057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1399184057 is an equidigital number, since it uses as much as digits as its factorization.

1399184057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 1399184057 is about 37405.6687816165. The cubic root of 1399184057 is about 1118.4715697486.

The spelling of 1399184057 in words is "one billion, three hundred ninety-nine million, one hundred eighty-four thousand, fifty-seven".