1375975 has 12 divisors (see below), whose sum is σ = 1781136. Its totient is φ = 1052480.

The previous prime is 1375951. The next prime is 1375981. The reversal of 1375975 is 5795731.

It is a happy number.

It is not a de Polignac number, because 1375975 - 2¹³ = 1367783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 622 + ... + 1771.

It is an arithmetic number, because the mean of its divisors is an integer number (148428).

2^1375975 is an apocalyptic number.

1375975 is a deficient number, since it is larger than the sum of its proper divisors (405161).

1375975 is a wasteful number, since it uses less digits than its factorization.

1375975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426 (or 2421 counting only the distinct ones).

The product of its digits is 33075, while the sum is 37.

The square root of 1375975 is about 1173.0196076793. The cubic root of 1375975 is about 111.2252817195.

The spelling of 1375975 in words is "one million, three hundred seventy-five thousand, nine hundred seventy-five".