1130197191 has 4 divisors (see below), whose sum is σ = 1506929592. Its totient is φ = 753464792.

The previous prime is 1130197181. The next prime is 1130197223. The reversal of 1130197191 is 1917910311.

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 1130197191 - 2⁶ = 1130197127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130197141) 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, 188366196 + ... + 188366201.

It is an arithmetic number, because the mean of its divisors is an integer number (376732398).

Almost surely, 2^1130197191 is an apocalyptic number.

1130197191 is a deficient number, since it is larger than the sum of its proper divisors (376732401).

1130197191 is an equidigital number, since it uses as much as digits as its factorization.

1130197191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376732400.

The product of its (nonzero) digits is 1701, while the sum is 33.

The square root of 1130197191 is about 33618.4055392281. The cubic root of 1130197191 is about 1041.6410208883.

The spelling of 1130197191 in words is "one billion, one hundred thirty million, one hundred ninety-seven thousand, one hundred ninety-one".