1157530379 has 2 divisors, whose sum is σ = 1157530380. Its totient is φ = 1157530378.

The previous prime is 1157530349. The next prime is 1157530417. The reversal of 1157530379 is 9730357511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1157530379 - 2¹⁶ = 1157464843 is a prime.

It is not a weakly prime, because it can be changed into another prime (1157530349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578765189 + 578765190.

It is an arithmetic number, because the mean of its divisors is an integer number (578765190).

Almost surely, 2^1157530379 is an apocalyptic number.

1157530379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157530379 is an equidigital number, since it uses as much as digits as its factorization.

1157530379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 99225, while the sum is 41.

The square root of 1157530379 is about 34022.4981299140. The cubic root of 1157530379 is about 1049.9713912084.

The spelling of 1157530379 in words is "one billion, one hundred fifty-seven million, five hundred thirty thousand, three hundred seventy-nine".