42766147 has 4 divisors (see below), whose sum is σ = 43028680. Its totient is φ = 42503616.

The previous prime is 42766103. The next prime is 42766181. The reversal of 42766147 is 74166724.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42766147 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (42766447) 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, 131022 + ... + 131347.

It is an arithmetic number, because the mean of its divisors is an integer number (10757170).

Almost surely, 2^42766147 is an apocalyptic number.

42766147 is a deficient number, since it is larger than the sum of its proper divisors (262533).

42766147 is a wasteful number, since it uses less digits than its factorization.

42766147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262532.

The product of its digits is 56448, while the sum is 37.

The square root of 42766147 is about 6539.5830906871. The cubic root of 42766147 is about 349.7035503389.

The spelling of 42766147 in words is "forty-two million, seven hundred sixty-six thousand, one hundred forty-seven".