1101580987 has 8 divisors (see below), whose sum is σ = 1187946704. Its totient is φ = 1015447968.

The previous prime is 1101580973. The next prime is 1101581027. The reversal of 1101580987 is 7890851011.

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 1101580987 - 2⁷ = 1101580859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101580927) 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, 48273 + ... + 67330.

It is an arithmetic number, because the mean of its divisors is an integer number (148493338).

Almost surely, 2^1101580987 is an apocalyptic number.

1101580987 is a deficient number, since it is larger than the sum of its proper divisors (86365717).

1101580987 is a wasteful number, since it uses less digits than its factorization.

1101580987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116349.

The product of its (nonzero) digits is 20160, while the sum is 40.

The square root of 1101580987 is about 33190.0736214911. The cubic root of 1101580987 is about 1032.7744306644.

The spelling of 1101580987 in words is "one billion, one hundred one million, five hundred eighty thousand, nine hundred eighty-seven".