1157317 has 4 divisors (see below), whose sum is σ = 1322656. Its totient is φ = 991980.

The previous prime is 1157293. The next prime is 1157327. The reversal of 1157317 is 7137511.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7137511 = 139 ⋅51349.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1157317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1157291 and 1157300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157327) 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, 82659 + ... + 82672.

It is an arithmetic number, because the mean of its divisors is an integer number (330664).

2^1157317 is an apocalyptic number.

It is an amenable number.

1157317 is a deficient number, since it is larger than the sum of its proper divisors (165339).

1157317 is an equidigital number, since it uses as much as digits as its factorization.

1157317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165338.

The product of its digits is 735, while the sum is 25.

The square root of 1157317 is about 1075.7866888933. The cubic root of 1157317 is about 104.9906870047.

The spelling of 1157317 in words is "one million, one hundred fifty-seven thousand, three hundred seventeen".