42868147 has 4 divisors (see below), whose sum is σ = 48992176. Its totient is φ = 36744120.

The previous prime is 42868121. The next prime is 42868171. The reversal of 42868147 is 74186824.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42868147 - 2¹¹ = 42866099 is a prime.

It is a super-3 number, since 3×42868147³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42868117) 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, 3062004 + ... + 3062017.

It is an arithmetic number, because the mean of its divisors is an integer number (12248044).

Almost surely, 2^42868147 is an apocalyptic number.

42868147 is a deficient number, since it is larger than the sum of its proper divisors (6124029).

42868147 is an equidigital number, since it uses as much as digits as its factorization.

42868147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6124028.

The product of its digits is 86016, while the sum is 40.

The square root of 42868147 is about 6547.3771084305. The cubic root of 42868147 is about 349.9813513873.

The spelling of 42868147 in words is "forty-two million, eight hundred sixty-eight thousand, one hundred forty-seven".