40113937 has 2 divisors, whose sum is σ = 40113938. Its totient is φ = 40113936.

The previous prime is 40113919. The next prime is 40113943. The reversal of 40113937 is 73931104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20079361 + 20034576 = 4481^2 + 4476^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40113937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40113917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20056968 + 20056969.

It is an arithmetic number, because the mean of its divisors is an integer number (20056969).

Almost surely, 2^40113937 is an apocalyptic number.

It is an amenable number.

40113937 is a deficient number, since it is larger than the sum of its proper divisors (1).

40113937 is an equidigital number, since it uses as much as digits as its factorization.

40113937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 40113937 is about 6333.5564258953. The cubic root of 40113937 is about 342.3195973951.

The spelling of 40113937 in words is "forty million, one hundred thirteen thousand, nine hundred thirty-seven".