1339990229 has 2 divisors, whose sum is σ = 1339990230. Its totient is φ = 1339990228.

The previous prime is 1339990213. The next prime is 1339990259. The reversal of 1339990229 is 9220999331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 924768100 + 415222129 = 30410^2 + 20377^2 .

It is a cyclic number.

It is not a de Polignac number, because 1339990229 - 2⁴ = 1339990213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1339990259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669995114 + 669995115.

It is an arithmetic number, because the mean of its divisors is an integer number (669995115).

Almost surely, 2^1339990229 is an apocalyptic number.

It is an amenable number.

1339990229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1339990229 is an equidigital number, since it uses as much as digits as its factorization.

1339990229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 236196, while the sum is 47.

The square root of 1339990229 is about 36605.8769735134. The cubic root of 1339990229 is about 1102.4710917738.

The spelling of 1339990229 in words is "one billion, three hundred thirty-nine million, nine hundred ninety thousand, two hundred twenty-nine".