11701157 has 4 divisors (see below), whose sum is σ = 12601260. Its totient is φ = 10801056.

The previous prime is 11701147. The next prime is 11701171. The reversal of 11701157 is 75110711.

11701157 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75110711 = 13 ⋅5777747.

It can be written as a sum of positive squares in 2 ways, for example, as 4726276 + 6974881 = 2174^2 + 2641^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11701157 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 (11701127) 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, 450032 + ... + 450057.

It is an arithmetic number, because the mean of its divisors is an integer number (3150315).

Almost surely, 2^11701157 is an apocalyptic number.

It is an amenable number.

11701157 is a deficient number, since it is larger than the sum of its proper divisors (900103).

11701157 is an equidigital number, since it uses as much as digits as its factorization.

11701157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900102.

The product of its (nonzero) digits is 245, while the sum is 23.

The square root of 11701157 is about 3420.6953971378. The cubic root of 11701157 is about 227.0263510328.

Adding to 11701157 its reverse (75110711), we get a palindrome (86811868).

The spelling of 11701157 in words is "eleven million, seven hundred one thousand, one hundred fifty-seven".