1230689039 has 2 divisors, whose sum is σ = 1230689040. Its totient is φ = 1230689038.

The previous prime is 1230689029. The next prime is 1230689051. The reversal of 1230689039 is 9309860321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1230689039 - 2⁴ = 1230689023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1230688987 and 1230689005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230689029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615344519 + 615344520.

It is an arithmetic number, because the mean of its divisors is an integer number (615344520).

Almost surely, 2^1230689039 is an apocalyptic number.

1230689039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230689039 is an equidigital number, since it uses as much as digits as its factorization.

1230689039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 1230689039 is about 35081.1778451066. The cubic root of 1230689039 is about 1071.6413041099.

The spelling of 1230689039 in words is "one billion, two hundred thirty million, six hundred eighty-nine thousand, thirty-nine".