40071959 has 2 divisors, whose sum is σ = 40071960. Its totient is φ = 40071958.

The previous prime is 40071953. The next prime is 40071973. The reversal of 40071959 is 95917004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40071959 - 2⁴ = 40071943 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40071953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20035979 + 20035980.

It is an arithmetic number, because the mean of its divisors is an integer number (20035980).

Almost surely, 2^40071959 is an apocalyptic number.

40071959 is a deficient number, since it is larger than the sum of its proper divisors (1).

40071959 is an equidigital number, since it uses as much as digits as its factorization.

40071959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 40071959 is about 6330.2416225607. The cubic root of 40071959 is about 342.2001467453.

The spelling of 40071959 in words is "forty million, seventy-one thousand, nine hundred fifty-nine".