40865101 has 2 divisors, whose sum is σ = 40865102. Its totient is φ = 40865100.

The previous prime is 40865087. The next prime is 40865107. The reversal of 40865101 is 10156804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25857225 + 15007876 = 5085^2 + 3874^2 .

It is a cyclic number.

It is not a de Polignac number, because 40865101 - 2¹³ = 40856909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40865107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20432550 + 20432551.

It is an arithmetic number, because the mean of its divisors is an integer number (20432551).

Almost surely, 2^40865101 is an apocalyptic number.

It is an amenable number.

40865101 is a deficient number, since it is larger than the sum of its proper divisors (1).

40865101 is an equidigital number, since it uses as much as digits as its factorization.

40865101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 40865101 is about 6392.5817163334. The cubic root of 40865101 is about 344.4431287921.

The spelling of 40865101 in words is "forty million, eight hundred sixty-five thousand, one hundred one".