1180556541 has 6 divisors (see below), whose sum is σ = 1705248350. Its totient is φ = 787037688.

The previous prime is 1180556467. The next prime is 1180556543. The reversal of 1180556541 is 1456550811.

1180556541 is a `hidden beast` number, since 11 + 80 + 5 + 565 + 4 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1038708441 + 141848100 = 32229^2 + 11910^2 .

It is not a de Polignac number, because 1180556541 - 2⁷ = 1180556413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1180556496 and 1180556505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1180556543) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65586466 + ... + 65586483.

Almost surely, 2^1180556541 is an apocalyptic number.

It is an amenable number.

1180556541 is a deficient number, since it is larger than the sum of its proper divisors (524691809).

1180556541 is a wasteful number, since it uses less digits than its factorization.

1180556541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131172955 (or 131172952 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 36.

The square root of 1180556541 is about 34359.2278871339. The cubic root of 1180556541 is about 1056.8879116358.

The spelling of 1180556541 in words is "one billion, one hundred eighty million, five hundred fifty-six thousand, five hundred forty-one".