1347994161 has 12 divisors (see below), whose sum is σ = 1952191488. Its totient is φ = 896314104.

The previous prime is 1347994147. The next prime is 1347994183. The reversal of 1347994161 is 1614997431.

It is a happy number.

1347994161 is a `hidden beast` number, since 13 + 479 + 9 + 4 + 161 = 666.

It is not a de Polignac number, because 1347994161 - 2⁷ = 1347994033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1347994261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192085 + ... + 198978.

It is an arithmetic number, because the mean of its divisors is an integer number (162682624).

Almost surely, 2^1347994161 is an apocalyptic number.

It is an amenable number.

1347994161 is a deficient number, since it is larger than the sum of its proper divisors (604197327).

1347994161 is a wasteful number, since it uses less digits than its factorization.

1347994161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391452 (or 391449 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 1347994161 is about 36715.0399836361. The cubic root of 1347994161 is about 1104.6618024138.

The spelling of 1347994161 in words is "one billion, three hundred forty-seven million, nine hundred ninety-four thousand, one hundred sixty-one".