41985451 has 2 divisors, whose sum is σ = 41985452. Its totient is φ = 41985450.

The previous prime is 41985443. The next prime is 41985457. The reversal of 41985451 is 15458914.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 41985451 - 2³ = 41985443 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41985451.

It is not a weakly prime, because it can be changed into another prime (41985457) 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, 20992725 + 20992726.

It is an arithmetic number, because the mean of its divisors is an integer number (20992726).

Almost surely, 2^41985451 is an apocalyptic number.

41985451 is a deficient number, since it is larger than the sum of its proper divisors (1).

41985451 is an equidigital number, since it uses as much as digits as its factorization.

41985451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 37.

The square root of 41985451 is about 6479.6181214636. The cubic root of 41985451 is about 347.5625227805.

It can be divided in two parts, 41985 and 451, that added together give a square (42436 = 206²).

The spelling of 41985451 in words is "forty-one million, nine hundred eighty-five thousand, four hundred fifty-one".