227148139 has 2 divisors, whose sum is σ = 227148140. Its totient is φ = 227148138.

The previous prime is 227148137. The next prime is 227148149. The reversal of 227148139 is 931841722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 227148139 - 2¹ = 227148137 is a prime.

Together with 227148137, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 227148098 and 227148107.

It is not a weakly prime, because it can be changed into another prime (227148137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113574069 + 113574070.

It is an arithmetic number, because the mean of its divisors is an integer number (113574070).

Almost surely, 2^227148139 is an apocalyptic number.

227148139 is a deficient number, since it is larger than the sum of its proper divisors (1).

227148139 is an equidigital number, since it uses as much as digits as its factorization.

227148139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 37.

The square root of 227148139 is about 15071.4345368979. The cubic root of 227148139 is about 610.1496891446.

The spelling of 227148139 in words is "two hundred twenty-seven million, one hundred forty-eight thousand, one hundred thirty-nine".