1296950039 has 8 divisors (see below), whose sum is σ = 1616976768. Its totient is φ = 1010610360.

The previous prime is 1296950003. The next prime is 1296950071. The reversal of 1296950039 is 9300596921.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1296950039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1296950939) 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, 8421677 + ... + 8421830.

It is an arithmetic number, because the mean of its divisors is an integer number (202122096).

Almost surely, 2^1296950039 is an apocalyptic number.

1296950039 is a deficient number, since it is larger than the sum of its proper divisors (320026729).

1296950039 is a wasteful number, since it uses less digits than its factorization.

1296950039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16843525.

The product of its (nonzero) digits is 131220, while the sum is 44.

The square root of 1296950039 is about 36013.1925688351. The cubic root of 1296950039 is about 1090.5387004168.

The spelling of 1296950039 in words is "one billion, two hundred ninety-six million, nine hundred fifty thousand, thirty-nine".