1157313 has 4 divisors (see below), whose sum is σ = 1543088. Its totient is φ = 771540.

The previous prime is 1157293. The next prime is 1157327. The reversal of 1157313 is 3137511.

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 not a de Polignac number, because 1157313 - 2⁹ = 1156801 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1157313.

It is not an unprimeable number, because it can be changed into a prime (1157333) 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, 192883 + ... + 192888.

It is an arithmetic number, because the mean of its divisors is an integer number (385772).

2^1157313 is an apocalyptic number.

It is an amenable number.

1157313 is a deficient number, since it is larger than the sum of its proper divisors (385775).

1157313 is an equidigital number, since it uses as much as digits as its factorization.

1157313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385774.

The product of its digits is 315, while the sum is 21.

The square root of 1157313 is about 1075.7848297871. The cubic root of 1157313 is about 104.9905660458.

The spelling of 1157313 in words is "one million, one hundred fifty-seven thousand, three hundred thirteen".