1180980643 has 4 divisors (see below), whose sum is σ = 1182039040. Its totient is φ = 1179922248.

The previous prime is 1180980623. The next prime is 1180980653. The reversal of 1180980643 is 3460890811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1180980643 - 2²⁵ = 1147426211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1180980596 and 1180980605.

It is not an unprimeable number, because it can be changed into a prime (1180980623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527523 + ... + 529756.

It is an arithmetic number, because the mean of its divisors is an integer number (295509760).

Almost surely, 2^1180980643 is an apocalyptic number.

1180980643 is a deficient number, since it is larger than the sum of its proper divisors (1058397).

1180980643 is a wasteful number, since it uses less digits than its factorization.

1180980643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058396.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 1180980643 is about 34365.3989210077. The cubic root of 1180980643 is about 1057.0144549506.

The spelling of 1180980643 in words is "one billion, one hundred eighty million, nine hundred eighty thousand, six hundred forty-three".