42142241 has 2 divisors, whose sum is σ = 42142242. Its totient is φ = 42142240.

The previous prime is 42142229. The next prime is 42142253. The reversal of 42142241 is 14224124.

It is a balanced prime because it is at equal distance from previous prime (42142229) and next prime (42142253).

It can be written as a sum of positive squares in only one way, i.e., 23001616 + 19140625 = 4796^2 + 4375^2 .

It is a cyclic number.

It is not a de Polignac number, because 42142241 - 2¹⁰ = 42141217 is a prime.

It is not a weakly prime, because it can be changed into another prime (42142211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21071120 + 21071121.

It is an arithmetic number, because the mean of its divisors is an integer number (21071121).

Almost surely, 2^42142241 is an apocalyptic number.

It is an amenable number.

42142241 is a deficient number, since it is larger than the sum of its proper divisors (1).

42142241 is an equidigital number, since it uses as much as digits as its factorization.

42142241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 512, while the sum is 20.

The square root of 42142241 is about 6491.7055540128. The cubic root of 42142241 is about 347.9946298771.

Adding to 42142241 its reverse (14224124), we get a palindrome (56366365).

The spelling of 42142241 in words is "forty-two million, one hundred forty-two thousand, two hundred forty-one".