1157430739 has 2 divisors, whose sum is σ = 1157430740. Its totient is φ = 1157430738.

The previous prime is 1157430709. The next prime is 1157430763. The reversal of 1157430739 is 9370347511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1157430739 - 2⁷ = 1157430611 is a prime.

It is a super-2 number, since 2×1157430739² = 2679291831164172242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1157430709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578715369 + 578715370.

It is an arithmetic number, because the mean of its divisors is an integer number (578715370).

Almost surely, 2^1157430739 is an apocalyptic number.

1157430739 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157430739 is an equidigital number, since it uses as much as digits as its factorization.

1157430739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 1157430739 is about 34021.0337732409. The cubic root of 1157430739 is about 1049.9412632298.

The spelling of 1157430739 in words is "one billion, one hundred fifty-seven million, four hundred thirty thousand, seven hundred thirty-nine".