1375000 has 56 divisors (see below), whose sum is σ = 3515580. Its totient is φ = 500000.

The previous prime is 1374983. The next prime is 1375007. The reversal of 1375000 is 5731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 124995 + ... + 125005.

2^1375000 is an apocalyptic number.

1375000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1375000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1757790).

1375000 is an abundant number, since it is smaller than the sum of its proper divisors (2140580).

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

1375000 is an frugal number, since it uses more digits than its factorization.

1375000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47 (or 18 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 16.

The square root of 1375000 is about 1172.6039399559. The cubic root of 1375000 is about 111.1990045285.

The spelling of 1375000 in words is "one million, three hundred seventy-five thousand".