140224213 has 2 divisors, whose sum is σ = 140224214. Its totient is φ = 140224212.

The previous prime is 140224181. The next prime is 140224229. The reversal of 140224213 is 312422041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119639844 + 20584369 = 10938^2 + 4537^2 .

It is a cyclic number.

It is not a de Polignac number, because 140224213 - 2⁵ = 140224181 is a prime.

It is a super-2 number, since 2×140224213² = 39325659822938738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140224913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70112106 + 70112107.

It is an arithmetic number, because the mean of its divisors is an integer number (70112107).

Almost surely, 2^140224213 is an apocalyptic number.

It is an amenable number.

140224213 is a deficient number, since it is larger than the sum of its proper divisors (1).

140224213 is an equidigital number, since it uses as much as digits as its factorization.

140224213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 140224213 is about 11841.6305042845. The cubic root of 140224213 is about 519.5264586904.

Adding to 140224213 its reverse (312422041), we get a palindrome (452646254).

The spelling of 140224213 in words is "one hundred forty million, two hundred twenty-four thousand, two hundred thirteen".