1159472091 has 4 divisors (see below), whose sum is σ = 1545962792. Its totient is φ = 772981392.

The previous prime is 1159472089. The next prime is 1159472101. The reversal of 1159472091 is 1902749511.

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

It is not a de Polignac number, because 1159472091 - 2¹ = 1159472089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1159472491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193245346 + ... + 193245351.

It is an arithmetic number, because the mean of its divisors is an integer number (386490698).

Almost surely, 2^1159472091 is an apocalyptic number.

1159472091 is a deficient number, since it is larger than the sum of its proper divisors (386490701).

1159472091 is an equidigital number, since it uses as much as digits as its factorization.

1159472091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386490700.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 1159472091 is about 34051.0218789393. The cubic root of 1159472091 is about 1050.5581585705.

The spelling of 1159472091 in words is "one billion, one hundred fifty-nine million, four hundred seventy-two thousand, ninety-one".