41665243 has 2 divisors, whose sum is σ = 41665244. Its totient is φ = 41665242.

The previous prime is 41665229. The next prime is 41665277. The reversal of 41665243 is 34256614.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 41665243 - 2¹³ = 41657051 is a prime.

It is not a weakly prime, because it can be changed into another prime (41665343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20832621 + 20832622.

It is an arithmetic number, because the mean of its divisors is an integer number (20832622).

Almost surely, 2^41665243 is an apocalyptic number.

41665243 is a deficient number, since it is larger than the sum of its proper divisors (1).

41665243 is an equidigital number, since it uses as much as digits as its factorization.

41665243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 31.

The square root of 41665243 is about 6454.8619659912. The cubic root of 41665243 is about 346.6766886690.

It can be divided in two parts, 4166 and 5243, that added together give a square (9409 = 97²).

The spelling of 41665243 in words is "forty-one million, six hundred sixty-five thousand, two hundred forty-three".