42869201 has 2 divisors, whose sum is σ = 42869202. Its totient is φ = 42869200.

The previous prime is 42869143. The next prime is 42869207. The reversal of 42869201 is 10296824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42510400 + 358801 = 6520^2 + 599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42869201 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (42869207) 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, 21434600 + 21434601.

It is an arithmetic number, because the mean of its divisors is an integer number (21434601).

Almost surely, 2^42869201 is an apocalyptic number.

It is an amenable number.

42869201 is a deficient number, since it is larger than the sum of its proper divisors (1).

42869201 is an equidigital number, since it uses as much as digits as its factorization.

42869201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 42869201 is about 6547.4575981827. The cubic root of 42869201 is about 349.9842196967.

The spelling of 42869201 in words is "forty-two million, eight hundred sixty-nine thousand, two hundred one".