40037147 has 2 divisors, whose sum is σ = 40037148. Its totient is φ = 40037146.

The previous prime is 40037141. The next prime is 40037189. The reversal of 40037147 is 74173004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40037147 - 2⁶ = 40037083 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40037141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20018573 + 20018574.

It is an arithmetic number, because the mean of its divisors is an integer number (20018574).

Almost surely, 2^40037147 is an apocalyptic number.

40037147 is a deficient number, since it is larger than the sum of its proper divisors (1).

40037147 is an equidigital number, since it uses as much as digits as its factorization.

40037147 is an evil number, because the sum of its binary digits is even.

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

The square root of 40037147 is about 6327.4913670427. The cubic root of 40037147 is about 342.1010240409.

The spelling of 40037147 in words is "forty million, thirty-seven thousand, one hundred forty-seven".