42102051 has 8 divisors (see below), whose sum is σ = 56274960. Its totient is φ = 27998592.

The previous prime is 42102037. The next prime is 42102059. The reversal of 42102051 is 15020124.

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

It is not a de Polignac number, because 42102051 - 2⁵ = 42102019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42102051.

It is not an unprimeable number, because it can be changed into a prime (42102059) 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, 15930 + ... + 18383.

It is an arithmetic number, because the mean of its divisors is an integer number (7034370).

Almost surely, 2^42102051 is an apocalyptic number.

42102051 is a deficient number, since it is larger than the sum of its proper divisors (14172909).

42102051 is a wasteful number, since it uses less digits than its factorization.

42102051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34725.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 42102051 is about 6488.6093271209. The cubic root of 42102051 is about 347.8839701035.

Adding to 42102051 its reverse (15020124), we get a palindrome (57122175).

The spelling of 42102051 in words is "forty-two million, one hundred two thousand, fifty-one".