1296127794 has 64 divisors (see below), whose sum is σ = 2889815040. Its totient is φ = 384860160.

The previous prime is 1296127771. The next prime is 1296127841. The reversal of 1296127794 is 4977216921.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1394722 + ... + 1395650.

It is an arithmetic number, because the mean of its divisors is an integer number (45153360).

Almost surely, 2^1296127794 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1296127794, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1444907520).

1296127794 is an abundant number, since it is smaller than the sum of its proper divisors (1593687246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1296127794 is a wasteful number, since it uses less digits than its factorization.

1296127794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555.

The product of its digits is 381024, while the sum is 48.

The square root of 1296127794 is about 36001.7748729143. The cubic root of 1296127794 is about 1090.3081904951.

It can be divided in two parts, 1296127 and 794, that added together give a palindrome (1296921).

The spelling of 1296127794 in words is "one billion, two hundred ninety-six million, one hundred twenty-seven thousand, seven hundred ninety-four".