1180549897 has 8 divisors (see below), whose sum is σ = 1210918280. Its totient is φ = 1150536960.

The previous prime is 1180549879. The next prime is 1180549999. The reversal of 1180549897 is 7989450811.

It can be written as a sum of positive squares in 4 ways, for example, as 54007801 + 1126542096 = 7349^2 + 33564^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1180549897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1180549817) 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, 82128 + ... + 95425.

It is an arithmetic number, because the mean of its divisors is an integer number (151364785).

Almost surely, 2^1180549897 is an apocalyptic number.

It is an amenable number.

1180549897 is a deficient number, since it is larger than the sum of its proper divisors (30368383).

1180549897 is a wasteful number, since it uses less digits than its factorization.

1180549897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177723.

The product of its (nonzero) digits is 725760, while the sum is 52.

The square root of 1180549897 is about 34359.1312026367. The cubic root of 1180549897 is about 1056.8859289618.

The spelling of 1180549897 in words is "one billion, one hundred eighty million, five hundred forty-nine thousand, eight hundred ninety-seven".