1161301045 has 4 divisors (see below), whose sum is σ = 1393561260. Its totient is φ = 929040832.

The previous prime is 1161301039. The next prime is 1161301069. The reversal of 1161301045 is 5401031611.

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 621853969 + 539447076 = 24937^2 + 23226^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1161301045 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116130100 + ... + 116130109.

It is an arithmetic number, because the mean of its divisors is an integer number (348390315).

Almost surely, 2^1161301045 is an apocalyptic number.

It is an amenable number.

1161301045 is a deficient number, since it is larger than the sum of its proper divisors (232260215).

1161301045 is an equidigital number, since it uses as much as digits as its factorization.

1161301045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232260214.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1161301045 is about 34077.8673775223. The cubic root of 1161301045 is about 1051.1102526831.

Adding to 1161301045 its reverse (5401031611), we get a palindrome (6562332656).

The spelling of 1161301045 in words is "one billion, one hundred sixty-one million, three hundred one thousand, forty-five".