40905107 has 2 divisors, whose sum is σ = 40905108. Its totient is φ = 40905106.

The previous prime is 40905097. The next prime is 40905131. The reversal of 40905107 is 70150904.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40905107 - 2¹² = 40901011 is a prime.

It is not a weakly prime, because it can be changed into another prime (40905187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20452553 + 20452554.

It is an arithmetic number, because the mean of its divisors is an integer number (20452554).

Almost surely, 2^40905107 is an apocalyptic number.

40905107 is a deficient number, since it is larger than the sum of its proper divisors (1).

40905107 is an equidigital number, since it uses as much as digits as its factorization.

40905107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 40905107 is about 6395.7100465859. The cubic root of 40905107 is about 344.5554927834. Note that the first 3 decimals are identical.

The spelling of 40905107 in words is "forty million, nine hundred five thousand, one hundred seven".