1157857339 has 2 divisors, whose sum is σ = 1157857340. Its totient is φ = 1157857338.

The previous prime is 1157857319. The next prime is 1157857357. The reversal of 1157857339 is 9337587511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1157857339 - 2¹⁷ = 1157726267 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1157857292 and 1157857301.

It is not a weakly prime, because it can be changed into another prime (1157857319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578928669 + 578928670.

It is an arithmetic number, because the mean of its divisors is an integer number (578928670).

Almost surely, 2^1157857339 is an apocalyptic number.

1157857339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157857339 is an equidigital number, since it uses as much as digits as its factorization.

1157857339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 793800, while the sum is 49.

The square root of 1157857339 is about 34027.3028463909. The cubic root of 1157857339 is about 1050.0702414083.

The spelling of 1157857339 in words is "one billion, one hundred fifty-seven million, eight hundred fifty-seven thousand, three hundred thirty-nine".