1146161641 has 4 divisors (see below), whose sum is σ = 1213582932. Its totient is φ = 1078740352.

The previous prime is 1146161561. The next prime is 1146161647. The reversal of 1146161641 is 1461616411.

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 317873241 + 828288400 = 17829^2 + 28780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1146161641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1146161647) 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, 33710620 + ... + 33710653.

It is an arithmetic number, because the mean of its divisors is an integer number (303395733).

Almost surely, 2^1146161641 is an apocalyptic number.

It is an amenable number.

1146161641 is a deficient number, since it is larger than the sum of its proper divisors (67421291).

1146161641 is an equidigital number, since it uses as much as digits as its factorization.

1146161641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67421290.

The product of its digits is 3456, while the sum is 31.

The square root of 1146161641 is about 33855.0090976210. The cubic root of 1146161641 is about 1046.5226282354.

The spelling of 1146161641 in words is "one billion, one hundred forty-six million, one hundred sixty-one thousand, six hundred forty-one".