42783161 has 8 divisors (see below), whose sum is σ = 43480320. Its totient is φ = 42090048.

The previous prime is 42783157. The next prime is 42783163. The reversal of 42783161 is 16138724.

42783161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42783161 - 2² = 42783157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42783163) 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 7 ways as a sum of consecutive naturals, for example, 25820 + ... + 27426.

It is an arithmetic number, because the mean of its divisors is an integer number (5435040).

Almost surely, 2^42783161 is an apocalyptic number.

It is an amenable number.

42783161 is a deficient number, since it is larger than the sum of its proper divisors (697159).

42783161 is a wasteful number, since it uses less digits than its factorization.

42783161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023.

The product of its digits is 8064, while the sum is 32.

The square root of 42783161 is about 6540.8838087830. The cubic root of 42783161 is about 349.7499193150.

The spelling of 42783161 in words is "forty-two million, seven hundred eighty-three thousand, one hundred sixty-one".