1157329539 has 72 divisors (see below), whose sum is σ = 1863912960. Its totient is φ = 717370992.

The previous prime is 1157329529. The next prime is 1157329543. The reversal of 1157329539 is 9359237511.

1157329539 is a `hidden beast` number, since 1 + 1 + 573 + 29 + 53 + 9 = 666.

It is not a de Polignac number, because 1157329539 - 2¹⁷ = 1157198467 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1157329494 and 1157329503.

It is not an unprimeable number, because it can be changed into a prime (1157329529) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6930034 + ... + 6930200.

It is an arithmetic number, because the mean of its divisors is an integer number (25887680).

Almost surely, 2^1157329539 is an apocalyptic number.

1157329539 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1157329539 is a deficient number, since it is larger than the sum of its proper divisors (706583421).

1157329539 is an equidigital number, since it uses as much as digits as its factorization.

1157329539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 268 counting only the distinct ones).

The product of its digits is 255150, while the sum is 45.

The square root of 1157329539 is about 34019.5464255478. The cubic root of 1157329539 is about 1049.9106617867.

The spelling of 1157329539 in words is "one billion, one hundred fifty-seven million, three hundred twenty-nine thousand, five hundred thirty-nine".