40069171 has 2 divisors, whose sum is σ = 40069172. Its totient is φ = 40069170.

The previous prime is 40069129. The next prime is 40069199. The reversal of 40069171 is 17196004.

It is an a-pointer prime, because the next prime (40069199) can be obtained adding 40069171 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40069171 - 2⁹ = 40068659 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40069571) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20034585 + 20034586.

It is an arithmetic number, because the mean of its divisors is an integer number (20034586).

Almost surely, 2^40069171 is an apocalyptic number.

40069171 is a deficient number, since it is larger than the sum of its proper divisors (1).

40069171 is an equidigital number, since it uses as much as digits as its factorization.

40069171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 40069171 is about 6330.0214059670. The cubic root of 40069171 is about 342.1922103881.

The spelling of 40069171 in words is "forty million, sixty-nine thousand, one hundred seventy-one".