1138074647 has 4 divisors (see below), whose sum is σ = 1139607120. Its totient is φ = 1136542176.

The previous prime is 1138074617. The next prime is 1138074649. The reversal of 1138074647 is 7464708311.

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 1138074647 - 2⁶ = 1138074583 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 (1138074649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 765122 + ... + 766607.

It is an arithmetic number, because the mean of its divisors is an integer number (284901780).

Almost surely, 2^1138074647 is an apocalyptic number.

1138074647 is a deficient number, since it is larger than the sum of its proper divisors (1532473).

1138074647 is an equidigital number, since it uses as much as digits as its factorization.

1138074647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532472.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 1138074647 is about 33735.3619663403. The cubic root of 1138074647 is about 1044.0554935809.

The spelling of 1138074647 in words is "one billion, one hundred thirty-eight million, seventy-four thousand, six hundred forty-seven".