1375564 has 6 divisors (see below), whose sum is σ = 2407244. Its totient is φ = 687780.

The previous prime is 1375547. The next prime is 1375567. The reversal of 1375564 is 4655731.

It is not an unprimeable number, because it can be changed into a prime (1375567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171942 + ... + 171949.

2^1375564 is an apocalyptic number.

It is an amenable number.

1375564 is a deficient number, since it is larger than the sum of its proper divisors (1031680).

1375564 is a wasteful number, since it uses less digits than its factorization.

1375564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343895 (or 343893 counting only the distinct ones).

The product of its digits is 12600, while the sum is 31.

The square root of 1375564 is about 1172.8444057078. The cubic root of 1375564 is about 111.2142063868.

The spelling of 1375564 in words is "one million, three hundred seventy-five thousand, five hundred sixty-four".