11313157 has 4 divisors (see below), whose sum is σ = 11618956. Its totient is φ = 11007360.

The previous prime is 11313139. The next prime is 11313173. The reversal of 11313157 is 75131311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75131311 = 41 ⋅1832471.

It can be written as a sum of positive squares in 2 ways, for example, as 9740641 + 1572516 = 3121^2 + 1254^2 .

It is a cyclic number.

It is not a de Polignac number, because 11313157 - 2¹¹ = 11311109 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 (11313457) 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, 152844 + ... + 152917.

It is an arithmetic number, because the mean of its divisors is an integer number (2904739).

Almost surely, 2^11313157 is an apocalyptic number.

It is an amenable number.

11313157 is a deficient number, since it is larger than the sum of its proper divisors (305799).

11313157 is an equidigital number, since it uses as much as digits as its factorization.

11313157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305798.

The product of its digits is 315, while the sum is 22.

The square root of 11313157 is about 3363.5036792012. The cubic root of 11313157 is about 224.4887618940.

Adding to 11313157 its reverse (75131311), we get a palindrome (86444468).

The spelling of 11313157 in words is "eleven million, three hundred thirteen thousand, one hundred fifty-seven".