42180701 has 2 divisors, whose sum is σ = 42180702. Its totient is φ = 42180700.

The previous prime is 42180679. The next prime is 42180727. The reversal of 42180701 is 10708124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36060025 + 6120676 = 6005^2 + 2474^2 .

It is a cyclic number.

It is not a de Polignac number, because 42180701 - 2¹⁸ = 41918557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42180751) 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 as a sum of consecutive naturals, namely, 21090350 + 21090351.

It is an arithmetic number, because the mean of its divisors is an integer number (21090351).

Almost surely, 2^42180701 is an apocalyptic number.

It is an amenable number.

42180701 is a deficient number, since it is larger than the sum of its proper divisors (1).

42180701 is an equidigital number, since it uses as much as digits as its factorization.

42180701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 42180701 is about 6494.6671200301. The cubic root of 42180701 is about 348.1004603829.

Adding to 42180701 its reverse (10708124), we get a palindrome (52888825).

The spelling of 42180701 in words is "forty-two million, one hundred eighty thousand, seven hundred one".