40102213 has 2 divisors, whose sum is σ = 40102214. Its totient is φ = 40102212.

The previous prime is 40102199. The next prime is 40102253. The reversal of 40102213 is 31220104.

40102213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33558849 + 6543364 = 5793^2 + 2558^2 .

It is a cyclic number.

It is not a de Polignac number, because 40102213 - 2⁹ = 40101701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40102193 and 40102202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40102253) 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 as a sum of consecutive naturals, namely, 20051106 + 20051107.

It is an arithmetic number, because the mean of its divisors is an integer number (20051107).

Almost surely, 2^40102213 is an apocalyptic number.

It is an amenable number.

40102213 is a deficient number, since it is larger than the sum of its proper divisors (1).

40102213 is an equidigital number, since it uses as much as digits as its factorization.

40102213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 40102213 is about 6332.6308119138. The cubic root of 40102213 is about 342.2862445148.

Adding to 40102213 its reverse (31220104), we get a palindrome (71322317).

The spelling of 40102213 in words is "forty million, one hundred two thousand, two hundred thirteen".