11157371 has 4 divisors (see below), whose sum is σ = 11429544. Its totient is φ = 10885200.

The previous prime is 11157353. The next prime is 11157379. The reversal of 11157371 is 17375111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17375111 = 13 ⋅1336547.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11157371 is a prime.

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 11157371.

It is not an unprimeable number, because it can be changed into a prime (11157379) 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, 136025 + ... + 136106.

It is an arithmetic number, because the mean of its divisors is an integer number (2857386).

Almost surely, 2^11157371 is an apocalyptic number.

11157371 is a deficient number, since it is larger than the sum of its proper divisors (272173).

11157371 is an equidigital number, since it uses as much as digits as its factorization.

11157371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272172.

The product of its digits is 735, while the sum is 26.

The square root of 11157371 is about 3340.2651092391. The cubic root of 11157371 is about 223.4535668529.

The spelling of 11157371 in words is "eleven million, one hundred fifty-seven thousand, three hundred seventy-one".