42107613 has 4 divisors (see below), whose sum is σ = 56143488. Its totient is φ = 28071740.

The previous prime is 42107609. The next prime is 42107647. The reversal of 42107613 is 31670124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42107613 - 2² = 42107609 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42107713) 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 3 ways as a sum of consecutive naturals, for example, 7017933 + ... + 7017938.

It is an arithmetic number, because the mean of its divisors is an integer number (14035872).

Almost surely, 2^42107613 is an apocalyptic number.

It is an amenable number.

42107613 is a deficient number, since it is larger than the sum of its proper divisors (14035875).

42107613 is a wasteful number, since it uses less digits than its factorization.

42107613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14035874.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 42107613 is about 6489.0379101990. The cubic root of 42107613 is about 347.8992887986.

Adding to 42107613 its reverse (31670124), we get a palindrome (73777737).

The spelling of 42107613 in words is "forty-two million, one hundred seven thousand, six hundred thirteen".