42631201 has 4 divisors (see below), whose sum is σ = 42649600. Its totient is φ = 42612804.

The previous prime is 42631181. The next prime is 42631243. The reversal of 42631201 is 10213624.

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-42631201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42631271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5121 + ... + 10558.

It is an arithmetic number, because the mean of its divisors is an integer number (10662400).

Almost surely, 2^42631201 is an apocalyptic number.

It is an amenable number.

42631201 is a deficient number, since it is larger than the sum of its proper divisors (18399).

42631201 is a wasteful number, since it uses less digits than its factorization.

42631201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18398.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 42631201 is about 6529.2573084540. The cubic root of 42631201 is about 349.3353399510.

Adding to 42631201 its reverse (10213624), we get a palindrome (52844825).

The spelling of 42631201 in words is "forty-two million, six hundred thirty-one thousand, two hundred one".