1296082605 has 16 divisors (see below), whose sum is σ = 2082873024. Its totient is φ = 688197120.

The previous prime is 1296082603. The next prime is 1296082709. The reversal of 1296082605 is 5062806921.

It is not a de Polignac number, because 1296082605 - 2¹ = 1296082603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1296082603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186916 + ... + 193725.

It is an arithmetic number, because the mean of its divisors is an integer number (130179564).

Almost surely, 2^1296082605 is an apocalyptic number.

1296082605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1296082605 is a deficient number, since it is larger than the sum of its proper divisors (786790419).

1296082605 is a wasteful number, since it uses less digits than its factorization.

1296082605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380876.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 1296082605 is about 36001.1472733856. The cubic root of 1296082605 is about 1090.2955192884.

The spelling of 1296082605 in words is "one billion, two hundred ninety-six million, eighty-two thousand, six hundred five".