42227147 has 4 divisors (see below), whose sum is σ = 42441696. Its totient is φ = 42012600.

The previous prime is 42227137. The next prime is 42227173. The reversal of 42227147 is 74172224.

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 42227147 - 2²² = 38032843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42227137) 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, 106979 + ... + 107372.

It is an arithmetic number, because the mean of its divisors is an integer number (10610424).

Almost surely, 2^42227147 is an apocalyptic number.

42227147 is a deficient number, since it is larger than the sum of its proper divisors (214549).

42227147 is a wasteful number, since it uses less digits than its factorization.

42227147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214548.

The product of its digits is 6272, while the sum is 29.

The square root of 42227147 is about 6498.2418391439. The cubic root of 42227147 is about 348.2281802720.

The spelling of 42227147 in words is "forty-two million, two hundred twenty-seven thousand, one hundred forty-seven".