40065197 has 8 divisors (see below), whose sum is σ = 41064192. Its totient is φ = 39072400.

The previous prime is 40065173. The next prime is 40065203. The reversal of 40065197 is 79156004.

It is a happy number.

40065197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40065197 - 2⁶ = 40065133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40065127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13247 + ... + 15987.

It is an arithmetic number, because the mean of its divisors is an integer number (5133024).

Almost surely, 2^40065197 is an apocalyptic number.

40065197 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

40065197 is a deficient number, since it is larger than the sum of its proper divisors (998995).

40065197 is a wasteful number, since it uses less digits than its factorization.

40065197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3099.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 40065197 is about 6329.7074971913. The cubic root of 40065197 is about 342.1808973115.

The spelling of 40065197 in words is "forty million, sixty-five thousand, one hundred ninety-seven".