42140615 has 16 divisors (see below), whose sum is σ = 55295136. Its totient is φ = 30576000.

The previous prime is 42140611. The next prime is 42140617. The reversal of 42140615 is 51604124.

It is not a de Polignac number, because 42140615 - 2² = 42140611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42140611) 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 15 ways as a sum of consecutive naturals, for example, 38009 + ... + 39101.

It is an arithmetic number, because the mean of its divisors is an integer number (3455946).

Almost surely, 2^42140615 is an apocalyptic number.

42140615 is a deficient number, since it is larger than the sum of its proper divisors (13154521).

42140615 is a wasteful number, since it uses less digits than its factorization.

42140615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 42140615 is about 6491.5803160710. The cubic root of 42140615 is about 347.9901541892.

Adding to 42140615 its reverse (51604124), we get a palindrome (93744739).

The spelling of 42140615 in words is "forty-two million, one hundred forty thousand, six hundred fifteen".