1349012647 has 4 divisors (see below), whose sum is σ = 1392529216. Its totient is φ = 1305496080.

The previous prime is 1349012531. The next prime is 1349012663. The reversal of 1349012647 is 7462109431.

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 1349012647 - 2¹¹ = 1349010599 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 (1349012447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21758238 + ... + 21758299.

It is an arithmetic number, because the mean of its divisors is an integer number (348132304).

Almost surely, 2^1349012647 is an apocalyptic number.

1349012647 is a deficient number, since it is larger than the sum of its proper divisors (43516569).

1349012647 is an equidigital number, since it uses as much as digits as its factorization.

1349012647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43516568.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 1349012647 is about 36728.9075116590. The cubic root of 1349012647 is about 1104.9399439116.

The spelling of 1349012647 in words is "one billion, three hundred forty-nine million, twelve thousand, six hundred forty-seven".