42136741 has 2 divisors, whose sum is σ = 42136742. Its totient is φ = 42136740.

The previous prime is 42136723. The next prime is 42136763. The reversal of 42136741 is 14763124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42120100 + 16641 = 6490^2 + 129^2 .

It is a cyclic number.

It is not a de Polignac number, because 42136741 - 2⁵ = 42136709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42136141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21068370 + 21068371.

It is an arithmetic number, because the mean of its divisors is an integer number (21068371).

Almost surely, 2^42136741 is an apocalyptic number.

It is an amenable number.

42136741 is a deficient number, since it is larger than the sum of its proper divisors (1).

42136741 is an equidigital number, since it uses as much as digits as its factorization.

42136741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 28.

The square root of 42136741 is about 6491.2819227022. The cubic root of 42136741 is about 347.9794902476.

Adding to 42136741 its reverse (14763124), we get a palindrome (56899865).

The spelling of 42136741 in words is "forty-two million, one hundred thirty-six thousand, seven hundred forty-one".