40564151 has 4 divisors (see below), whose sum is σ = 41872704. Its totient is φ = 39255600.

The previous prime is 40564103. The next prime is 40564163. The reversal of 40564151 is 15146504.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40564151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40564151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40564171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654230 + ... + 654291.

It is an arithmetic number, because the mean of its divisors is an integer number (10468176).

Almost surely, 2^40564151 is an apocalyptic number.

40564151 is a deficient number, since it is larger than the sum of its proper divisors (1308553).

40564151 is a wasteful number, since it uses less digits than its factorization.

40564151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308552.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 40564151 is about 6368.9992149474. Note that the first 3 decimals coincide. The cubic root of 40564151 is about 343.5954970243.

The spelling of 40564151 in words is "forty million, five hundred sixty-four thousand, one hundred fifty-one".