1161244441 has 8 divisors (see below), whose sum is σ = 1328494464. Its totient is φ = 994333920.

The previous prime is 1161244433. The next prime is 1161244457. The reversal of 1161244441 is 1444421611.

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 1161244441 - 2³ = 1161244433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161244481) 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, 77500 + ... + 91261.

It is an arithmetic number, because the mean of its divisors is an integer number (166061808).

Almost surely, 2^1161244441 is an apocalyptic number.

It is an amenable number.

1161244441 is a deficient number, since it is larger than the sum of its proper divisors (167250023).

1161244441 is an equidigital number, since it uses as much as digits as its factorization.

1161244441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169751.

The product of its digits is 3072, while the sum is 28.

The square root of 1161244441 is about 34077.0368576847. The cubic root of 1161244441 is about 1051.0931747078.

The spelling of 1161244441 in words is "one billion, one hundred sixty-one million, two hundred forty-four thousand, four hundred forty-one".