40159037 has 2 divisors, whose sum is σ = 40159038. Its totient is φ = 40159036.

The previous prime is 40159019. The next prime is 40159039. The reversal of 40159037 is 73095104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39677401 + 481636 = 6299^2 + 694^2 .

It is a cyclic number.

It is not a de Polignac number, because 40159037 - 2⁶ = 40158973 is a prime.

It is a super-2 number, since 2×40159037² = 3225496505534738, which contains 22 as substring.

Together with 40159039, 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 (40159039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20079518 + 20079519.

It is an arithmetic number, because the mean of its divisors is an integer number (20079519).

Almost surely, 2^40159037 is an apocalyptic number.

It is an amenable number.

40159037 is a deficient number, since it is larger than the sum of its proper divisors (1).

40159037 is an equidigital number, since it uses as much as digits as its factorization.

40159037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 40159037 is about 6337.1158266202. The cubic root of 40159037 is about 342.4478390383.

The spelling of 40159037 in words is "forty million, one hundred fifty-nine thousand, thirty-seven".