42075361 has 2 divisors, whose sum is σ = 42075362. Its totient is φ = 42075360.

The previous prime is 42075359. The next prime is 42075379. The reversal of 42075361 is 16357024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39450961 + 2624400 = 6281^2 + 1620^2 .

It is a cyclic number.

It is not a de Polignac number, because 42075361 - 2¹ = 42075359 is a prime.

Together with 42075359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42075301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21037680 + 21037681.

It is an arithmetic number, because the mean of its divisors is an integer number (21037681).

Almost surely, 2^42075361 is an apocalyptic number.

It is an amenable number.

42075361 is a deficient number, since it is larger than the sum of its proper divisors (1).

42075361 is an equidigital number, since it uses as much as digits as its factorization.

42075361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 42075361 is about 6486.5523199925. The cubic root of 42075361 is about 347.8104425226.

It can be divided in two parts, 42075 and 361, that added together give a square (42436 = 206²).

The spelling of 42075361 in words is "forty-two million, seventy-five thousand, three hundred sixty-one".