1361145131 has 8 divisors (see below), whose sum is σ = 1409274720. Its totient is φ = 1313095168.

The previous prime is 1361145127. The next prime is 1361145157. The reversal of 1361145131 is 1315411631.

It is a happy number.

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 1361145131 - 2² = 1361145127 is a prime.

It is a super-2 number, since 2×1361145131² = 3705432135290014322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1361145131.

It is not an unprimeable number, because it can be changed into a prime (1361145931) 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, 16010 + ... + 54576.

It is an arithmetic number, because the mean of its divisors is an integer number (176159340).

Almost surely, 2^1361145131 is an apocalyptic number.

1361145131 is a deficient number, since it is larger than the sum of its proper divisors (48129589).

1361145131 is a wasteful number, since it uses less digits than its factorization.

1361145131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39813.

The product of its digits is 1080, while the sum is 26.

The square root of 1361145131 is about 36893.7004243272. The cubic root of 1361145131 is about 1108.2425265846.

Adding to 1361145131 its reverse (1315411631), we get a palindrome (2676556762).

The spelling of 1361145131 in words is "one billion, three hundred sixty-one million, one hundred forty-five thousand, one hundred thirty-one".