42430061 has 2 divisors, whose sum is σ = 42430062. Its totient is φ = 42430060.

The previous prime is 42430043. The next prime is 42430067. The reversal of 42430061 is 16003424.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24068836 + 18361225 = 4906^2 + 4285^2 .

It is a cyclic number.

It is not a de Polignac number, because 42430061 - 2⁶ = 42429997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42430067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21215030 + 21215031.

It is an arithmetic number, because the mean of its divisors is an integer number (21215031).

Almost surely, 2^42430061 is an apocalyptic number.

It is an amenable number.

42430061 is a deficient number, since it is larger than the sum of its proper divisors (1).

42430061 is an equidigital number, since it uses as much as digits as its factorization.

42430061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 42430061 is about 6513.8361201369. The cubic root of 42430061 is about 348.7850692072.

Adding to 42430061 its reverse (16003424), we get a palindrome (58433485).

The spelling of 42430061 in words is "forty-two million, four hundred thirty thousand, sixty-one".