1376671138 has 8 divisors (see below), whose sum is σ = 2065416732. Its totient is φ = 688198896.

The previous prime is 1376671091. The next prime is 1376671139. The reversal of 1376671138 is 8311766731.

It can be written as a sum of positive squares in 2 ways, for example, as 1326926329 + 49744809 = 36427^2 + 7053^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1376671094 and 1376671103.

It is not an unprimeable number, because it can be changed into a prime (1376671139) 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, 55245 + ... + 76192.

Almost surely, 2^1376671138 is an apocalyptic number.

1376671138 is a deficient number, since it is larger than the sum of its proper divisors (688745594).

1376671138 is a wasteful number, since it uses less digits than its factorization.

1376671138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136676.

The product of its digits is 127008, while the sum is 43.

The square root of 1376671138 is about 37103.5192131420. The cubic root of 1376671138 is about 1112.4403571611.

The spelling of 1376671138 in words is "one billion, three hundred seventy-six million, six hundred seventy-one thousand, one hundred thirty-eight".