1375575 has 12 divisors (see below), whose sum is σ = 2274408. Its totient is φ = 733600.

The previous prime is 1375571. The next prime is 1375597. The reversal of 1375575 is 5755731.

It is not a de Polignac number, because 1375575 - 2² = 1375571 is a prime.

1375575 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9096 + ... + 9245.

It is an arithmetic number, because the mean of its divisors is an integer number (189534).

2^1375575 is an apocalyptic number.

1375575 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1375575 is a deficient number, since it is larger than the sum of its proper divisors (898833).

1375575 is a wasteful number, since it uses less digits than its factorization.

1375575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18354 (or 18349 counting only the distinct ones).

The product of its digits is 18375, while the sum is 33.

The square root of 1375575 is about 1172.8490951525. The cubic root of 1375575 is about 111.2145028356.

The spelling of 1375575 in words is "one million, three hundred seventy-five thousand, five hundred seventy-five".