1375530 has 32 divisors (see below), whose sum is σ = 3556224. Its totient is φ = 338496.

The previous prime is 1375513. The next prime is 1375531. The reversal of 1375530 is 355731.

It is a self number, because there is not a number n which added to its sum of digits gives 1375530.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375531) 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, 1374 + ... + 2153.

It is an arithmetic number, because the mean of its divisors is an integer number (111132).

2^1375530 is an apocalyptic number.

1375530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1375530 is an abundant number, since it is smaller than the sum of its proper divisors (2180694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1375530 is a wasteful number, since it uses less digits than its factorization.

1375530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3550.

The product of its (nonzero) digits is 1575, while the sum is 24.

The square root of 1375530 is about 1172.8299109419. The cubic root of 1375530 is about 111.2132900804.

The spelling of 1375530 in words is "one million, three hundred seventy-five thousand, five hundred thirty".