1156745747 has 8 divisors (see below), whose sum is σ = 1161895680. Its totient is φ = 1151607240.

The previous prime is 1156745743. The next prime is 1156745753. The reversal of 1156745747 is 7475476511.

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 1156745747 - 2² = 1156745743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1156745743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245738 + ... + 250400.

It is an arithmetic number, because the mean of its divisors is an integer number (145236960).

Almost surely, 2^1156745747 is an apocalyptic number.

1156745747 is a deficient number, since it is larger than the sum of its proper divisors (5149933).

1156745747 is an equidigital number, since it uses as much as digits as its factorization.

1156745747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5713.

The product of its digits is 823200, while the sum is 47.

The square root of 1156745747 is about 34010.9650995087. The cubic root of 1156745747 is about 1049.7340965379.

The spelling of 1156745747 in words is "one billion, one hundred fifty-six million, seven hundred forty-five thousand, seven hundred forty-seven".