11542857 has 4 divisors (see below), whose sum is σ = 15390480. Its totient is φ = 7695236.

The previous prime is 11542829. The next prime is 11542859. The reversal of 11542857 is 75824511.

11542857 is digitally balanced in base 3, because in such base 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11542857 - 2⁶ = 11542793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11542859) 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, 1923807 + ... + 1923812.

It is an arithmetic number, because the mean of its divisors is an integer number (3847620).

Almost surely, 2^11542857 is an apocalyptic number.

It is an amenable number.

11542857 is a deficient number, since it is larger than the sum of its proper divisors (3847623).

11542857 is an equidigital number, since it uses as much as digits as its factorization.

11542857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847622.

The product of its digits is 11200, while the sum is 33.

The square root of 11542857 is about 3397.4780352491. The cubic root of 11542857 is about 225.9979181159.

The spelling of 11542857 in words is "eleven million, five hundred forty-two thousand, eight hundred fifty-seven".