42014561 has 4 divisors (see below), whose sum is σ = 42641712. Its totient is φ = 41387412.

The previous prime is 42014519. The next prime is 42014587. The reversal of 42014561 is 16541024.

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 a de Polignac number, because none of the positive numbers 2^k-42014561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42017561) 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, 313475 + ... + 313608.

It is an arithmetic number, because the mean of its divisors is an integer number (10660428).

Almost surely, 2^42014561 is an apocalyptic number.

It is an amenable number.

42014561 is a deficient number, since it is larger than the sum of its proper divisors (627151).

42014561 is an equidigital number, since it uses as much as digits as its factorization.

42014561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627150.

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

The square root of 42014561 is about 6481.8640065956. The cubic root of 42014561 is about 347.6428300251.

Adding to 42014561 its reverse (16541024), we get a palindrome (58555585).

The spelling of 42014561 in words is "forty-two million, fourteen thousand, five hundred sixty-one".