40815701 has 2 divisors, whose sum is σ = 40815702. Its totient is φ = 40815700.

The previous prime is 40815683. The next prime is 40815727. The reversal of 40815701 is 10751804.

It is an a-pointer prime, because the next prime (40815727) can be obtained adding 40815701 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., 34210801 + 6604900 = 5849^2 + 2570^2 .

It is a cyclic number.

It is not a de Polignac number, because 40815701 - 2⁶ = 40815637 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40815601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20407850 + 20407851.

It is an arithmetic number, because the mean of its divisors is an integer number (20407851).

Almost surely, 2^40815701 is an apocalyptic number.

It is an amenable number.

40815701 is a deficient number, since it is larger than the sum of its proper divisors (1).

40815701 is an equidigital number, since it uses as much as digits as its factorization.

40815701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 40815701 is about 6388.7166942978. The cubic root of 40815701 is about 344.3042788429.

The spelling of 40815701 in words is "forty million, eight hundred fifteen thousand, seven hundred one".