40551213 has 8 divisors (see below), whose sum is σ = 54100576. Its totient is φ = 27018000.

The previous prime is 40551191. The next prime is 40551221. The reversal of 40551213 is 31215504.

40551213 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 not a de Polignac number, because 40551213 - 2¹⁸ = 40289069 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 40551213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40551233) 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, 4263 + ... + 9963.

It is an arithmetic number, because the mean of its divisors is an integer number (6762572).

Almost surely, 2^40551213 is an apocalyptic number.

It is an amenable number.

40551213 is a deficient number, since it is larger than the sum of its proper divisors (13549363).

40551213 is a wasteful number, since it uses less digits than its factorization.

40551213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8075.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 40551213 is about 6367.9834327674. The cubic root of 40551213 is about 343.5589630311.

Adding to 40551213 its reverse (31215504), we get a palindrome (71766717).

The spelling of 40551213 in words is "forty million, five hundred fifty-one thousand, two hundred thirteen".