11542863 has 4 divisors (see below), whose sum is σ = 15390488. Its totient is φ = 7695240.

The previous prime is 11542859. The next prime is 11542879. The reversal of 11542863 is 36824511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36824511 = 3 ⋅12274837.

It is not a de Polignac number, because 11542863 - 2² = 11542859 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 11542863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11542763) 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, 1923808 + ... + 1923813.

It is an arithmetic number, because the mean of its divisors is an integer number (3847622).

Almost surely, 2^11542863 is an apocalyptic number.

11542863 is a deficient number, since it is larger than the sum of its proper divisors (3847625).

11542863 is an equidigital number, since it uses as much as digits as its factorization.

11542863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847624.

The product of its digits is 5760, while the sum is 30.

The square root of 11542863 is about 3397.4789182569. The cubic root of 11542863 is about 225.9979572739.

The spelling of 11542863 in words is "eleven million, five hundred forty-two thousand, eight hundred sixty-three".