1161249325 has 12 divisors (see below), whose sum is σ = 1459676788. Its totient is φ = 916272000.

The previous prime is 1161249317. The next prime is 1161249373. The reversal of 1161249325 is 5239421611.

It can be written as a sum of positive squares in 6 ways, for example, as 7396 + 1161241929 = 86^2 + 34077^2 .

It is not a de Polignac number, because 1161249325 - 2³ = 1161249317 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 316326 + ... + 319975.

Almost surely, 2^1161249325 is an apocalyptic number.

It is an amenable number.

1161249325 is a deficient number, since it is larger than the sum of its proper divisors (298427463).

1161249325 is an equidigital number, since it uses as much as digits as its factorization.

1161249325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636384 (or 636379 counting only the distinct ones).

The product of its digits is 12960, while the sum is 34.

The square root of 1161249325 is about 34077.1085187696. The cubic root of 1161249325 is about 1051.0946482798.

The spelling of 1161249325 in words is "one billion, one hundred sixty-one million, two hundred forty-nine thousand, three hundred twenty-five".