42318651 has 4 divisors (see below), whose sum is σ = 56424872. Its totient is φ = 28212432.

The previous prime is 42318649. The next prime is 42318667. The reversal of 42318651 is 15681324.

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

It is not a de Polignac number, because 42318651 - 2¹ = 42318649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42318631) 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, 7053106 + ... + 7053111.

It is an arithmetic number, because the mean of its divisors is an integer number (14106218).

Almost surely, 2^42318651 is an apocalyptic number.

42318651 is a deficient number, since it is larger than the sum of its proper divisors (14106221).

42318651 is a wasteful number, since it uses less digits than its factorization.

42318651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14106220.

The product of its digits is 5760, while the sum is 30.

The square root of 42318651 is about 6505.2787027152. The cubic root of 42318651 is about 348.4795295048.

Adding to 42318651 its reverse (15681324), we get a palindrome (57999975).

The spelling of 42318651 in words is "forty-two million, three hundred eighteen thousand, six hundred fifty-one".