1214723943194 has 4 divisors (see below), whose sum is σ = 1822085914794. Its totient is φ = 607361971596.

The previous prime is 1214723943193. The next prime is 1214723943197. The reversal of 1214723943194 is 4913493274121.

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

It can be written as a sum of positive squares in only one way, i.e., 1178447026969 + 36276916225 = 1085563^2 + 190465^2 .

It is not an unprimeable number, because it can be changed into a prime (1214723943193) by changing a digit.

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, 303680985797 + ... + 303680985800.

Almost surely, 2^{1214723943194} is an apocalyptic number.

1214723943194 is a deficient number, since it is larger than the sum of its proper divisors (607361971600).

1214723943194 is an equidigital number, since it uses as much as digits as its factorization.

1214723943194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607361971599.

The product of its digits is 1306368, while the sum is 50.

The spelling of 1214723943194 in words is "one trillion, two hundred fourteen billion, seven hundred twenty-three million, nine hundred forty-three thousand, one hundred ninety-four".