1375374139 has 4 divisors (see below), whose sum is σ = 1376263600. Its totient is φ = 1374484680.

The previous prime is 1375374073. The next prime is 1375374149. The reversal of 1375374139 is 9314735731.

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 1375374139 - 2¹³ = 1375365947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1375374095 and 1375374104.

It is not an unprimeable number, because it can be changed into a prime (1375374149) 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, 442407 + ... + 445504.

It is an arithmetic number, because the mean of its divisors is an integer number (344065900).

Almost surely, 2^1375374139 is an apocalyptic number.

1375374139 is a deficient number, since it is larger than the sum of its proper divisors (889461).

1375374139 is an equidigital number, since it uses as much as digits as its factorization.

1375374139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889460.

The product of its digits is 238140, while the sum is 43.

The square root of 1375374139 is about 37086.0369815919. The cubic root of 1375374139 is about 1112.0908940397.

The spelling of 1375374139 in words is "one billion, three hundred seventy-five million, three hundred seventy-four thousand, one hundred thirty-nine".