42694163 has 4 divisors (see below), whose sum is σ = 42707808. Its totient is φ = 42680520.

The previous prime is 42694129. The next prime is 42694181. The reversal of 42694163 is 36149624.

42694163 is digitally balanced in base 2, 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 brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42694163 - 2²² = 38499859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42694363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470 + ... + 9252.

It is an arithmetic number, because the mean of its divisors is an integer number (10676952).

Almost surely, 2^42694163 is an apocalyptic number.

42694163 is a deficient number, since it is larger than the sum of its proper divisors (13645).

42694163 is an equidigital number, since it uses as much as digits as its factorization.

42694163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13644.

The product of its digits is 31104, while the sum is 35.

The square root of 42694163 is about 6534.0770580090. The cubic root of 42694163 is about 349.5072330870.

The spelling of 42694163 in words is "forty-two million, six hundred ninety-four thousand, one hundred sixty-three".