1375340773 has 4 divisors (see below), whose sum is σ = 1375422048. Its totient is φ = 1375259500.

The previous prime is 1375340737. The next prime is 1375340803. The reversal of 1375340773 is 3770435731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3770435731 = 1723 ⋅2188297.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1375340773 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 (1375340173) 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, 4603 + ... + 52648.

It is an arithmetic number, because the mean of its divisors is an integer number (343855512).

Almost surely, 2^1375340773 is an apocalyptic number.

It is an amenable number.

1375340773 is a deficient number, since it is larger than the sum of its proper divisors (81275).

1375340773 is an equidigital number, since it uses as much as digits as its factorization.

1375340773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81274.

The product of its (nonzero) digits is 185220, while the sum is 40.

The square root of 1375340773 is about 37085.5871330090. The cubic root of 1375340773 is about 1112.0819010140.

The spelling of 1375340773 in words is "one billion, three hundred seventy-five million, three hundred forty thousand, seven hundred seventy-three".