1239229 has 2 divisors, whose sum is σ = 1239230. Its totient is φ = 1239228.

The previous prime is 1239223. The next prime is 1239239. The reversal of 1239229 is 9229321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1004004 + 235225 = 1002^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 1239229 - 2⁵ = 1239197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1239197 and 1239206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1239223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619614 + 619615.

It is an arithmetic number, because the mean of its divisors is an integer number (619615).

2^1239229 is an apocalyptic number.

It is an amenable number.

1239229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1239229 is an equidigital number, since it uses as much as digits as its factorization.

1239229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 28.

The square root of 1239229 is about 1113.2066295167. The cubic root of 1239229 is about 107.4114359802.

It can be divided in two parts, 12392 and 29, that added together give a palindrome (12421).

The spelling of 1239229 in words is "one million, two hundred thirty-nine thousand, two hundred twenty-nine".