1349964143191 has 4 divisors (see below), whose sum is σ = 1350311270800. Its totient is φ = 1349617015584.

The previous prime is 1349964143183. The next prime is 1349964143197. The reversal of 1349964143191 is 1913414699431.

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

It is a cyclic number.

It is not a de Polignac number, because 1349964143191 - 2³ = 1349964143183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1349964143197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173557971 + ... + 173565748.

It is an arithmetic number, because the mean of its divisors is an integer number (337577817700).

Almost surely, 2^{1349964143191} is an apocalyptic number.

1349964143191 is a deficient number, since it is larger than the sum of its proper divisors (347127609).

1349964143191 is an equidigital number, since it uses as much as digits as its factorization.

1349964143191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347127608.

The product of its digits is 2519424, while the sum is 55.

The spelling of 1349964143191 in words is "one trillion, three hundred forty-nine billion, nine hundred sixty-four million, one hundred forty-three thousand, one hundred ninety-one".