1160980921 has 4 divisors (see below), whose sum is σ = 1222085200. Its totient is φ = 1099876644.

The previous prime is 1160980903. The next prime is 1160980943. The reversal of 1160980921 is 1290890611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1160980921 - 2⁵ = 1160980889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1160980991) 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, 30552111 + ... + 30552148.

It is an arithmetic number, because the mean of its divisors is an integer number (305521300).

Almost surely, 2^1160980921 is an apocalyptic number.

It is an amenable number.

1160980921 is a deficient number, since it is larger than the sum of its proper divisors (61104279).

1160980921 is an equidigital number, since it uses as much as digits as its factorization.

1160980921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61104278.

The product of its (nonzero) digits is 7776, while the sum is 37.

The square root of 1160980921 is about 34073.1701049374. The cubic root of 1160980921 is about 1051.0136608638.

It can be divided in two parts, 1160 and 980921, that added together give a square (982081 = 991²).

The spelling of 1160980921 in words is "one billion, one hundred sixty million, nine hundred eighty thousand, nine hundred twenty-one".