1157032307 has 8 divisors (see below), whose sum is σ = 1170871200. Its totient is φ = 1143212224.

The previous prime is 1157032297. The next prime is 1157032333. The reversal of 1157032307 is 7032307511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1157032307 - 2¹⁸ = 1156770163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1157032307.

It is not an unprimeable number, because it can be changed into a prime (1157032337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148298 + ... + 155904.

It is an arithmetic number, because the mean of its divisors is an integer number (146358900).

Almost surely, 2^1157032307 is an apocalyptic number.

1157032307 is a deficient number, since it is larger than the sum of its proper divisors (13838893).

1157032307 is an equidigital number, since it uses as much as digits as its factorization.

1157032307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9405.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 1157032307 is about 34015.1775976548. The cubic root of 1157032307 is about 1049.8207727347.

Adding to 1157032307 its reverse (7032307511), we get a palindrome (8189339818).

The spelling of 1157032307 in words is "one billion, one hundred fifty-seven million, thirty-two thousand, three hundred seven".