40740137 has 2 divisors, whose sum is σ = 40740138. Its totient is φ = 40740136.

The previous prime is 40740113. The next prime is 40740163. The reversal of 40740137 is 73104704.

40740137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (40740163) can be obtained adding 40740137 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40309801 + 430336 = 6349^2 + 656^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40740137 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40740187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20370068 + 20370069.

It is an arithmetic number, because the mean of its divisors is an integer number (20370069).

Almost surely, 2^40740137 is an apocalyptic number.

It is an amenable number.

40740137 is a deficient number, since it is larger than the sum of its proper divisors (1).

40740137 is an equidigital number, since it uses as much as digits as its factorization.

40740137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 40740137 is about 6382.8000908692. The cubic root of 40740137 is about 344.0916720934.

The spelling of 40740137 in words is "forty million, seven hundred forty thousand, one hundred thirty-seven".