42671147 has 4 divisors (see below), whose sum is σ = 43370736. Its totient is φ = 41971560.

The previous prime is 42671143. The next prime is 42671177. The reversal of 42671147 is 74117624.

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

It is a cyclic number.

It is not a de Polignac number, because 42671147 - 2² = 42671143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42671143) 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, 349703 + ... + 349824.

It is an arithmetic number, because the mean of its divisors is an integer number (10842684).

Almost surely, 2^42671147 is an apocalyptic number.

42671147 is a deficient number, since it is larger than the sum of its proper divisors (699589).

42671147 is an equidigital number, since it uses as much as digits as its factorization.

42671147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699588.

The product of its digits is 9408, while the sum is 32.

The square root of 42671147 is about 6532.3155924986. The cubic root of 42671147 is about 349.4444165029. Note that the first 4 decimals are identical.

The spelling of 42671147 in words is "forty-two million, six hundred seventy-one thousand, one hundred forty-seven".