1296070239 has 4 divisors (see below), whose sum is σ = 1728093656. Its totient is φ = 864046824.

The previous prime is 1296070219. The next prime is 1296070273. The reversal of 1296070239 is 9320706921.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1296070239 - 2⁵ = 1296070207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1296070197 and 1296070206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1296070219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216011704 + ... + 216011709.

It is an arithmetic number, because the mean of its divisors is an integer number (432023414).

Almost surely, 2^1296070239 is an apocalyptic number.

1296070239 is a deficient number, since it is larger than the sum of its proper divisors (432023417).

1296070239 is an equidigital number, since it uses as much as digits as its factorization.

1296070239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432023416.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 1296070239 is about 36000.9755284492. The cubic root of 1296070239 is about 1090.2920517529.

The spelling of 1296070239 in words is "one billion, two hundred ninety-six million, seventy thousand, two hundred thirty-nine".