42136863 has 16 divisors (see below), whose sum is σ = 60756480. Its totient is φ = 25874816.

The previous prime is 42136847. The next prime is 42136873. The reversal of 42136863 is 36863124.

It is not a de Polignac number, because 42136863 - 2⁴ = 42136847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42136873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6393 + ... + 11186.

It is an arithmetic number, because the mean of its divisors is an integer number (3797280).

Almost surely, 2^42136863 is an apocalyptic number.

42136863 is a deficient number, since it is larger than the sum of its proper divisors (18619617).

42136863 is a wasteful number, since it uses less digits than its factorization.

42136863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17646.

The product of its digits is 20736, while the sum is 33.

The square root of 42136863 is about 6491.2913199147. The cubic root of 42136863 is about 347.9798260864.

Adding to 42136863 its reverse (36863124), we get a palindrome (78999987).

The spelling of 42136863 in words is "forty-two million, one hundred thirty-six thousand, eight hundred sixty-three".