1239130739 has 8 divisors (see below), whose sum is σ = 1544890368. Its totient is φ = 965556360.

The previous prime is 1239130709. The next prime is 1239130747. The reversal of 1239130739 is 9370319321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1239130739 - 2¹² = 1239126643 is a prime.

It is a super-2 number, since 2×1239130739² = 3070889976669372242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1239130709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8046227 + ... + 8046380.

It is an arithmetic number, because the mean of its divisors is an integer number (193111296).

Almost surely, 2^1239130739 is an apocalyptic number.

1239130739 is a deficient number, since it is larger than the sum of its proper divisors (305759629).

1239130739 is a wasteful number, since it uses less digits than its factorization.

1239130739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16092625.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 1239130739 is about 35201.2888826531. The cubic root of 1239130739 is about 1074.0859694773.

The spelling of 1239130739 in words is "one billion, two hundred thirty-nine million, one hundred thirty thousand, seven hundred thirty-nine".