1296208534 has 8 divisors (see below), whose sum is σ = 2011358160. Its totient is φ = 625755816.

The previous prime is 1296208523. The next prime is 1296208561. The reversal of 1296208534 is 4358026921.

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

It is a super-2 number, since 2×1296208534² = 3360313127228858312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11174154 + ... + 11174269.

It is an arithmetic number, because the mean of its divisors is an integer number (251419770).

Almost surely, 2^1296208534 is an apocalyptic number.

1296208534 is a deficient number, since it is larger than the sum of its proper divisors (715149626).

1296208534 is a wasteful number, since it uses less digits than its factorization.

1296208534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22348454.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 1296208534 is about 36002.8961890568. The cubic root of 1296208534 is about 1090.3308296350.

The spelling of 1296208534 in words is "one billion, two hundred ninety-six million, two hundred eight thousand, five hundred thirty-four".