42020141 has 8 divisors (see below), whose sum is σ = 44934264. Its totient is φ = 39155200.

The previous prime is 42020131. The next prime is 42020171. The reversal of 42020141 is 14102024.

It can be written as a sum of positive squares in 4 ways, for example, as 29268100 + 12752041 = 5410^2 + 3571^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42020141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42020131) 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, 10520 + ... + 13953.

It is an arithmetic number, because the mean of its divisors is an integer number (5616783).

Almost surely, 2^42020141 is an apocalyptic number.

It is an amenable number.

42020141 is a deficient number, since it is larger than the sum of its proper divisors (2914123).

42020141 is a wasteful number, since it uses less digits than its factorization.

42020141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24591.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 42020141 is about 6482.2944240446. The cubic root of 42020141 is about 347.6582196192.

Adding to 42020141 its reverse (14102024), we get a palindrome (56122165).

The spelling of 42020141 in words is "forty-two million, twenty thousand, one hundred forty-one".