1157452815191 has 4 divisors (see below), whose sum is σ = 1157470599432. Its totient is φ = 1157435030952.

The previous prime is 1157452815083. The next prime is 1157452815283. The reversal of 1157452815191 is 1915182547511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1157452815191 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 (1157452845191) 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, 8794136 + ... + 8924781.

It is an arithmetic number, because the mean of its divisors is an integer number (289367649858).

Almost surely, 2^{1157452815191} is an apocalyptic number.

1157452815191 is a deficient number, since it is larger than the sum of its proper divisors (17784241).

1157452815191 is an equidigital number, since it uses as much as digits as its factorization.

1157452815191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17784240.

The product of its digits is 504000, while the sum is 50.

The spelling of 1157452815191 in words is "one trillion, one hundred fifty-seven billion, four hundred fifty-two million, eight hundred fifteen thousand, one hundred ninety-one".