42121141 has 8 divisors (see below), whose sum is σ = 43084800. Its totient is φ = 41168400.

The previous prime is 42121099. The next prime is 42121147. The reversal of 42121141 is 14112124.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42121141 - 2¹⁵ = 42088373 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 (42121147) 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, 5340 + ... + 10618.

It is an arithmetic number, because the mean of its divisors is an integer number (5385600).

Almost surely, 2^42121141 is an apocalyptic number.

It is an amenable number.

42121141 is a deficient number, since it is larger than the sum of its proper divisors (963659).

42121141 is a wasteful number, since it uses less digits than its factorization.

42121141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5459.

The product of its digits is 64, while the sum is 16.

The square root of 42121141 is about 6490.0801998126. The cubic root of 42121141 is about 347.9365415844.

Adding to 42121141 its reverse (14112124), we get a palindrome (56233265).

The spelling of 42121141 in words is "forty-two million, one hundred twenty-one thousand, one hundred forty-one".