1338971156 has 12 divisors (see below), whose sum is σ = 2393055168. Its totient is φ = 655241112.

The previous prime is 1338971099. The next prime is 1338971159. The reversal of 1338971156 is 6511798331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338971159) 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, 3560906 + ... + 3561281.

It is an arithmetic number, because the mean of its divisors is an integer number (199421264).

Almost surely, 2^1338971156 is an apocalyptic number.

It is an amenable number.

1338971156 is a deficient number, since it is larger than the sum of its proper divisors (1054084012).

1338971156 is a wasteful number, since it uses less digits than its factorization.

1338971156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7122238 (or 7122236 counting only the distinct ones).

The product of its digits is 136080, while the sum is 44.

The square root of 1338971156 is about 36591.9547988352. The cubic root of 1338971156 is about 1102.1915416127.

The spelling of 1338971156 in words is "one billion, three hundred thirty-eight million, nine hundred seventy-one thousand, one hundred fifty-six".