1223870147 has 2 divisors, whose sum is σ = 1223870148. Its totient is φ = 1223870146.

The previous prime is 1223870143. The next prime is 1223870233. The reversal of 1223870147 is 7410783221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1223870147 - 2² = 1223870143 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223870143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611935073 + 611935074.

It is an arithmetic number, because the mean of its divisors is an integer number (611935074).

Almost surely, 2^1223870147 is an apocalyptic number.

1223870147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223870147 is an equidigital number, since it uses as much as digits as its factorization.

1223870147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 1223870147 is about 34983.8555193678. The cubic root of 1223870147 is about 1069.6584192230.

The spelling of 1223870147 in words is "one billion, two hundred twenty-three million, eight hundred seventy thousand, one hundred forty-seven".