1375742687 has 32 divisors (see below), whose sum is σ = 1604966400. Its totient is φ = 1167443200.

The previous prime is 1375742681. The next prime is 1375742689. The reversal of 1375742687 is 7862475731.

It is a happy number.

It is not a de Polignac number, because 1375742687 - 2¹² = 1375738591 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 (1375742681) 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 31 ways as a sum of consecutive naturals, for example, 1333862 + ... + 1334892.

It is an arithmetic number, because the mean of its divisors is an integer number (50155200).

Almost surely, 2^1375742687 is an apocalyptic number.

1375742687 is a deficient number, since it is larger than the sum of its proper divisors (229223713).

1375742687 is a wasteful number, since it uses less digits than its factorization.

1375742687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207.

The product of its digits is 1975680, while the sum is 50.

The square root of 1375742687 is about 37091.0054730254. The cubic root of 1375742687 is about 1112.1902178672.

The spelling of 1375742687 in words is "one billion, three hundred seventy-five million, seven hundred forty-two thousand, six hundred eighty-seven".