42100851 has 8 divisors (see below), whose sum is σ = 60452560. Its totient is φ = 25908192.

The previous prime is 42100831. The next prime is 42100853. The reversal of 42100851 is 15800124.

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

It is not a de Polignac number, because 42100851 - 2⁵ = 42100819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42100853) 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, 539716 + ... + 539793.

It is an arithmetic number, because the mean of its divisors is an integer number (7556570).

Almost surely, 2^42100851 is an apocalyptic number.

42100851 is a deficient number, since it is larger than the sum of its proper divisors (18351709).

42100851 is a wasteful number, since it uses less digits than its factorization.

42100851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079525.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 42100851 is about 6488.5168567247. The cubic root of 42100851 is about 347.8806649223.

Adding to 42100851 its reverse (15800124), we get a palindrome (57900975).

The spelling of 42100851 in words is "forty-two million, one hundred thousand, eight hundred fifty-one".