1294138814 has 4 divisors (see below), whose sum is σ = 1941208224. Its totient is φ = 647069406.

The previous prime is 1294138777. The next prime is 1294138829. The reversal of 1294138814 is 4188314921.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323534702 + ... + 323534705.

It is an arithmetic number, because the mean of its divisors is an integer number (485302056).

Almost surely, 2^1294138814 is an apocalyptic number.

1294138814 is a deficient number, since it is larger than the sum of its proper divisors (647069410).

1294138814 is an equidigital number, since it uses as much as digits as its factorization.

1294138814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647069409.

The product of its digits is 55296, while the sum is 41.

The square root of 1294138814 is about 35974.1409070460. The cubic root of 1294138814 is about 1089.7501921709.

The spelling of 1294138814 in words is "one billion, two hundred ninety-four million, one hundred thirty-eight thousand, eight hundred fourteen".