42107515 has 8 divisors (see below), whose sum is σ = 53188560. Its totient is φ = 31912992.

The previous prime is 42107501. The next prime is 42107519. The reversal of 42107515 is 51570124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42107515 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42107515.

It is not an unprimeable number, because it can be changed into a prime (42107519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221524 + ... + 221713.

It is an arithmetic number, because the mean of its divisors is an integer number (6648570).

Almost surely, 2^42107515 is an apocalyptic number.

42107515 is a deficient number, since it is larger than the sum of its proper divisors (11081045).

42107515 is a wasteful number, since it uses less digits than its factorization.

42107515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443261.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 42107515 is about 6489.0303589982. The cubic root of 42107515 is about 347.8990189016.

Adding to 42107515 its reverse (51570124), we get a palindrome (93677639).

The spelling of 42107515 in words is "forty-two million, one hundred seven thousand, five hundred fifteen".