1120891197 has 8 divisors (see below), whose sum is σ = 1494688960. Its totient is φ = 747177120.

The previous prime is 1120891193. The next prime is 1120891199. The reversal of 1120891197 is 7911980211.

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

It is not a de Polignac number, because 1120891197 - 2² = 1120891193 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120891193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24297 + ... + 53217.

It is an arithmetic number, because the mean of its divisors is an integer number (186836120).

Almost surely, 2^1120891197 is an apocalyptic number.

It is an amenable number.

1120891197 is a deficient number, since it is larger than the sum of its proper divisors (373797763).

1120891197 is a wasteful number, since it uses less digits than its factorization.

1120891197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41843.

The product of its (nonzero) digits is 9072, while the sum is 39.

The square root of 1120891197 is about 33479.7132156176. The cubic root of 1120891197 is about 1038.7741958651.

The spelling of 1120891197 in words is "one billion, one hundred twenty million, eight hundred ninety-one thousand, one hundred ninety-seven".