1161947323 has 8 divisors (see below), whose sum is σ = 1168112960. Its totient is φ = 1155798720.

The previous prime is 1161947317. The next prime is 1161947341. The reversal of 1161947323 is 3237491611.

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 1161947323 - 2⁵ = 1161947291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161947023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146233 + ... + 153973.

It is an arithmetic number, because the mean of its divisors is an integer number (146014120).

Almost surely, 2^1161947323 is an apocalyptic number.

1161947323 is a deficient number, since it is larger than the sum of its proper divisors (6165637).

1161947323 is an equidigital number, since it uses as much as digits as its factorization.

1161947323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8517.

The product of its digits is 27216, while the sum is 37.

The square root of 1161947323 is about 34087.3484301727. The cubic root of 1161947323 is about 1051.3052016899.

The spelling of 1161947323 in words is "one billion, one hundred sixty-one million, nine hundred forty-seven thousand, three hundred twenty-three".