1180157819 has 2 divisors, whose sum is σ = 1180157820. Its totient is φ = 1180157818.

The previous prime is 1180157767. The next prime is 1180157821. The reversal of 1180157819 is 9187510811.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1180157819 is a prime.

It is a super-2 number, since 2×1180157819² = 2785544955493673522, which contains 22 as substring.

Together with 1180157821, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1180157219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590078909 + 590078910.

It is an arithmetic number, because the mean of its divisors is an integer number (590078910).

Almost surely, 2^1180157819 is an apocalyptic number.

1180157819 is a deficient number, since it is larger than the sum of its proper divisors (1).

1180157819 is an equidigital number, since it uses as much as digits as its factorization.

1180157819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 41.

The square root of 1180157819 is about 34353.4251421892. The cubic root of 1180157819 is about 1056.7689135480.

The spelling of 1180157819 in words is "one billion, one hundred eighty million, one hundred fifty-seven thousand, eight hundred nineteen".