40142159 has 2 divisors, whose sum is σ = 40142160. Its totient is φ = 40142158.

The previous prime is 40142149. The next prime is 40142161. The reversal of 40142159 is 95124104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40142159 - 2⁴ = 40142143 is a prime.

It is a super-2 number, since 2×40142159² = 3222785858362562, which contains 22 as substring.

Together with 40142161, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40142129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20071079 + 20071080.

It is an arithmetic number, because the mean of its divisors is an integer number (20071080).

Almost surely, 2^40142159 is an apocalyptic number.

40142159 is a deficient number, since it is larger than the sum of its proper divisors (1).

40142159 is an equidigital number, since it uses as much as digits as its factorization.

40142159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 40142159 is about 6335.7840083134. The cubic root of 40142159 is about 342.3998577705.

The spelling of 40142159 in words is "forty million, one hundred forty-two thousand, one hundred fifty-nine".