1118457139 has 2 divisors, whose sum is σ = 1118457140. Its totient is φ = 1118457138.

The previous prime is 1118457113. The next prime is 1118457157. The reversal of 1118457139 is 9317548111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1118457139 - 2¹⁷ = 1118326067 is a prime.

It is not a weakly prime, because it can be changed into another prime (1118457199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559228569 + 559228570.

It is an arithmetic number, because the mean of its divisors is an integer number (559228570).

Almost surely, 2^1118457139 is an apocalyptic number.

1118457139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118457139 is an equidigital number, since it uses as much as digits as its factorization.

1118457139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 40.

The square root of 1118457139 is about 33443.3422223318. The cubic root of 1118457139 is about 1038.0217383389.

The spelling of 1118457139 in words is "one billion, one hundred eighteen million, four hundred fifty-seven thousand, one hundred thirty-nine".