1376942139 has 8 divisors (see below), whose sum is σ = 2039914320. Its totient is φ = 917961408.

The previous prime is 1376942131. The next prime is 1376942143. The reversal of 1376942139 is 9312496731.

1376942139 is a `hidden beast` number, since 137 + 69 + 421 + 39 = 666.

It is not a de Polignac number, because 1376942139 - 2³ = 1376942131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1376942094 and 1376942103.

It is not an unprimeable number, because it can be changed into a prime (1376942131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25498902 + ... + 25498955.

It is an arithmetic number, because the mean of its divisors is an integer number (254989290).

Almost surely, 2^1376942139 is an apocalyptic number.

1376942139 is a deficient number, since it is larger than the sum of its proper divisors (662972181).

1376942139 is an equidigital number, since it uses as much as digits as its factorization.

1376942139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50997866 (or 50997860 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 1376942139 is about 37107.1709916021. The cubic root of 1376942139 is about 1112.5133478851.

The spelling of 1376942139 in words is "one billion, three hundred seventy-six million, nine hundred forty-two thousand, one hundred thirty-nine".