42651115 has 8 divisors (see below), whose sum is σ = 55118448. Its totient is φ = 31496160.

The previous prime is 42651109. The next prime is 42651151. The reversal of 42651115 is 51115624.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42651115 - 2¹⁹ = 42126827 is a prime.

It is a super-2 number, since 2×42651115² = 3638235221486450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42651115.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328021 + ... + 328150.

It is an arithmetic number, because the mean of its divisors is an integer number (6889806).

Almost surely, 2^42651115 is an apocalyptic number.

42651115 is a deficient number, since it is larger than the sum of its proper divisors (12467333).

42651115 is a wasteful number, since it uses less digits than its factorization.

42651115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656189.

The product of its digits is 1200, while the sum is 25.

The square root of 42651115 is about 6530.7821124273. The cubic root of 42651115 is about 349.3897256347.

Adding to 42651115 its reverse (51115624), we get a palindrome (93766739).

The spelling of 42651115 in words is "forty-two million, six hundred fifty-one thousand, one hundred fifteen".