42210129 has 16 divisors (see below), whose sum is σ = 63245952. Its totient is φ = 24845568.

The previous prime is 42210071. The next prime is 42210137. The reversal of 42210129 is 92101224.

It is not a de Polignac number, because 42210129 - 2¹² = 42206033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42210199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22632 + ... + 24425.

It is an arithmetic number, because the mean of its divisors is an integer number (3952872).

Almost surely, 2^42210129 is an apocalyptic number.

It is an amenable number.

42210129 is a deficient number, since it is larger than the sum of its proper divisors (21035823).

42210129 is a wasteful number, since it uses less digits than its factorization.

42210129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47096.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 42210129 is about 6496.9322760823. The cubic root of 42210129 is about 348.1813940703.

The spelling of 42210129 in words is "forty-two million, two hundred ten thousand, one hundred twenty-nine".