1375844263 has 16 divisors (see below), whose sum is σ = 1448119296. Its totient is φ = 1305501120.

The previous prime is 1375844251. The next prime is 1375844287. The reversal of 1375844263 is 3624485731.

It is a cyclic number.

It is not a de Polignac number, because 1375844263 - 2⁵ = 1375844231 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 (1375844293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 482520 + ... + 485362.

It is an arithmetic number, because the mean of its divisors is an integer number (90507456).

Almost surely, 2^1375844263 is an apocalyptic number.

1375844263 is a deficient number, since it is larger than the sum of its proper divisors (72275033).

1375844263 is a wasteful number, since it uses less digits than its factorization.

1375844263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174.

The product of its digits is 483840, while the sum is 43.

The square root of 1375844263 is about 37092.3747285072. The cubic root of 1375844263 is about 1112.2175895200.

The spelling of 1375844263 in words is "one billion, three hundred seventy-five million, eight hundred forty-four thousand, two hundred sixty-three".