222630139 has 2 divisors, whose sum is σ = 222630140. Its totient is φ = 222630138.

The previous prime is 222630131. The next prime is 222630143. The reversal of 222630139 is 931036222.

222630139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222630139 - 2³ = 222630131 is a prime.

It is a Chen prime.

It is equal to p_12259450 and since 222630139 and 12259450 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (222630131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111315069 + 111315070.

It is an arithmetic number, because the mean of its divisors is an integer number (111315070).

Almost surely, 2^222630139 is an apocalyptic number.

222630139 is a deficient number, since it is larger than the sum of its proper divisors (1).

222630139 is an equidigital number, since it uses as much as digits as its factorization.

222630139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 222630139 is about 14920.7955216872. The cubic root of 222630139 is about 606.0772547256.

The spelling of 222630139 in words is "two hundred twenty-two million, six hundred thirty thousand, one hundred thirty-nine".