1375746517 has 4 divisors (see below), whose sum is σ = 1379579040. Its totient is φ = 1371913996.

The previous prime is 1375746503. The next prime is 1375746557. The reversal of 1375746517 is 7156475731.

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.

It is a cyclic number.

It is not a de Polignac number, because 1375746517 - 2¹⁹ = 1375222229 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 (1375746557) 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, 1915723 + ... + 1916440.

It is an arithmetic number, because the mean of its divisors is an integer number (344894760).

Almost surely, 2^1375746517 is an apocalyptic number.

It is an amenable number.

1375746517 is a deficient number, since it is larger than the sum of its proper divisors (3832523).

1375746517 is an equidigital number, since it uses as much as digits as its factorization.

1375746517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3832522.

The product of its digits is 617400, while the sum is 46.

The square root of 1375746517 is about 37091.0571027573. The cubic root of 1375746517 is about 1112.1912499605.

The spelling of 1375746517 in words is "one billion, three hundred seventy-five million, seven hundred forty-six thousand, five hundred seventeen".