1156192945 has 4 divisors (see below), whose sum is σ = 1387431540. Its totient is φ = 924954352.

The previous prime is 1156192927. The next prime is 1156192979. The reversal of 1156192945 is 5492916511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 707134464 + 449058481 = 26592^2 + 21191^2 .

It is a cyclic number.

It is not a de Polignac number, because 1156192945 - 2⁵ = 1156192913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115619290 + ... + 115619299.

It is an arithmetic number, because the mean of its divisors is an integer number (346857885).

Almost surely, 2^1156192945 is an apocalyptic number.

It is an amenable number.

1156192945 is a deficient number, since it is larger than the sum of its proper divisors (231238595).

1156192945 is an equidigital number, since it uses as much as digits as its factorization.

1156192945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231238594.

The product of its digits is 97200, while the sum is 43.

The square root of 1156192945 is about 34002.8373080836. The cubic root of 1156192945 is about 1049.5668493061.

The spelling of 1156192945 in words is "one billion, one hundred fifty-six million, one hundred ninety-two thousand, nine hundred forty-five".