42252141 has 8 divisors (see below), whose sum is σ = 56400064. Its totient is φ = 28136160.

The previous prime is 42252137. The next prime is 42252151. The reversal of 42252141 is 14125224.

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

It is not a de Polignac number, because 42252141 - 2² = 42252137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42252151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4705 + ... + 10326.

It is an arithmetic number, because the mean of its divisors is an integer number (7050008).

Almost surely, 2^42252141 is an apocalyptic number.

It is an amenable number.

42252141 is a deficient number, since it is larger than the sum of its proper divisors (14147923).

42252141 is a wasteful number, since it uses less digits than its factorization.

42252141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15971.

The product of its digits is 640, while the sum is 21.

The square root of 42252141 is about 6500.1646902213. The cubic root of 42252141 is about 348.2968714585.

Adding to 42252141 its reverse (14125224), we get a palindrome (56377365).

The spelling of 42252141 in words is "forty-two million, two hundred fifty-two thousand, one hundred forty-one".