1157941919 has 2 divisors, whose sum is σ = 1157941920. Its totient is φ = 1157941918.

The previous prime is 1157941903. The next prime is 1157941921. The reversal of 1157941919 is 9191497511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1157941919 - 2⁴ = 1157941903 is a prime.

It is a super-2 number, since 2×1157941919² = 2681658975554805122, which contains 22 as substring.

Together with 1157941921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1157941979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578970959 + 578970960.

It is an arithmetic number, because the mean of its divisors is an integer number (578970960).

Almost surely, 2^1157941919 is an apocalyptic number.

1157941919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157941919 is an equidigital number, since it uses as much as digits as its factorization.

1157941919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 47.

The square root of 1157941919 is about 34028.5456492046. The cubic root of 1157941919 is about 1050.0958095491.

The spelling of 1157941919 in words is "one billion, one hundred fifty-seven million, nine hundred forty-one thousand, nine hundred nineteen".