1159192947 has 18 divisors (see below), whose sum is σ = 1699823524. Its totient is φ = 702148040.

The previous prime is 1159192927. The next prime is 1159192949. The reversal of 1159192947 is 7492919511.

It is not a de Polignac number, because 1159192947 - 2¹¹ = 1159190899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1159192896 and 1159192905.

It is not an unprimeable number, because it can be changed into a prime (1159192949) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 647788 + ... + 649574.

Almost surely, 2^1159192947 is an apocalyptic number.

1159192947 is a deficient number, since it is larger than the sum of its proper divisors (540630577).

1159192947 is an frugal number, since it uses more digits than its factorization.

1159192947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3599 (or 1801 counting only the distinct ones).

The product of its digits is 204120, while the sum is 48.

The square root of 1159192947 is about 34046.9227243814. The cubic root of 1159192947 is about 1050.4738441812.

Multiplying 1159192947 by its sum of digits (48), we get a square (55641261456 = 235884²).

The spelling of 1159192947 in words is "one billion, one hundred fifty-nine million, one hundred ninety-two thousand, nine hundred forty-seven".