1181361363 has 16 divisors (see below), whose sum is σ = 1938644736. Its totient is φ = 623135520.

The previous prime is 1181361289. The next prime is 1181361367. The reversal of 1181361363 is 3631631811.

It is a happy number.

It is not a de Polignac number, because 1181361363 - 2²⁰ = 1180312787 is a prime.

It is a super-2 number, since 2×1181361363² = 2791229339978435538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1181361367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2163393 + ... + 2163938.

It is an arithmetic number, because the mean of its divisors is an integer number (121165296).

Almost surely, 2^1181361363 is an apocalyptic number.

1181361363 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1181361363 is a deficient number, since it is larger than the sum of its proper divisors (757283373).

1181361363 is a wasteful number, since it uses less digits than its factorization.

1181361363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4327354.

The product of its digits is 7776, while the sum is 33.

The square root of 1181361363 is about 34370.9377672475. The cubic root of 1181361363 is about 1057.1280281660.

The spelling of 1181361363 in words is "one billion, one hundred eighty-one million, three hundred sixty-one thousand, three hundred sixty-three".