1157289023193 has 4 divisors (see below), whose sum is σ = 1543052030928. Its totient is φ = 771526015460.

The previous prime is 1157289023167. The next prime is 1157289023203. The reversal of 1157289023193 is 3913209827511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1157289023193 - 2¹² = 1157289019097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1157289023893) 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, 192881503863 + ... + 192881503868.

It is an arithmetic number, because the mean of its divisors is an integer number (385763007732).

Almost surely, 2^{1157289023193} is an apocalyptic number.

It is an amenable number.

1157289023193 is a deficient number, since it is larger than the sum of its proper divisors (385763007735).

1157289023193 is an equidigital number, since it uses as much as digits as its factorization.

1157289023193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385763007734.

The product of its (nonzero) digits is 816480, while the sum is 51.

The spelling of 1157289023193 in words is "one trillion, one hundred fifty-seven billion, two hundred eighty-nine million, twenty-three thousand, one hundred ninety-three".