1296195946 has 8 divisors (see below), whose sum is σ = 1952429760. Its totient is φ = 645386028.

The previous prime is 1296195917. The next prime is 1296195947. The reversal of 1296195946 is 6495916921.

It is a happy number.

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

It is a super-3 number, since 3×1296195946³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1296195893 and 1296195902.

It is not an unprimeable number, because it can be changed into a prime (1296195947) by changing a digit.

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, 1355376 + ... + 1356331.

It is an arithmetic number, because the mean of its divisors is an integer number (244053720).

Almost surely, 2^1296195946 is an apocalyptic number.

1296195946 is a deficient number, since it is larger than the sum of its proper divisors (656233814).

1296195946 is a wasteful number, since it uses less digits than its factorization.

1296195946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711948.

The product of its digits is 1049760, while the sum is 52.

The square root of 1296195946 is about 36002.7213693632. The cubic root of 1296195946 is about 1090.3273000772.

The spelling of 1296195946 in words is "one billion, two hundred ninety-six million, one hundred ninety-five thousand, nine hundred forty-six".