1157393907 has 8 divisors (see below), whose sum is σ = 1714657680. Its totient is φ = 771595920.

The previous prime is 1157393899. The next prime is 1157393917. The reversal of 1157393907 is 7093937511.

It is not a de Polignac number, because 1157393907 - 2³ = 1157393899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1157393917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21433194 + ... + 21433247.

It is an arithmetic number, because the mean of its divisors is an integer number (214332210).

Almost surely, 2^1157393907 is an apocalyptic number.

1157393907 is a deficient number, since it is larger than the sum of its proper divisors (557263773).

1157393907 is an equidigital number, since it uses as much as digits as its factorization.

1157393907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42866450 (or 42866444 counting only the distinct ones).

The product of its (nonzero) digits is 178605, while the sum is 45.

The square root of 1157393907 is about 34020.4924567532. The cubic root of 1157393907 is about 1049.9301259625.

The spelling of 1157393907 in words is "one billion, one hundred fifty-seven million, three hundred ninety-three thousand, nine hundred seven".