226777139 has 2 divisors, whose sum is σ = 226777140. Its totient is φ = 226777138.

The previous prime is 226777099. The next prime is 226777147. The reversal of 226777139 is 931777622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 226777139 - 2²⁰ = 225728563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 226777139.

It is not a weakly prime, because it can be changed into another prime (226777189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113388569 + 113388570.

It is an arithmetic number, because the mean of its divisors is an integer number (113388570).

Almost surely, 2^226777139 is an apocalyptic number.

226777139 is a deficient number, since it is larger than the sum of its proper divisors (1).

226777139 is an equidigital number, since it uses as much as digits as its factorization.

226777139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 222264, while the sum is 44.

The square root of 226777139 is about 15059.1214551182. The cubic root of 226777139 is about 609.8173232442.

The spelling of 226777139 in words is "two hundred twenty-six million, seven hundred seventy-seven thousand, one hundred thirty-nine".