1375500 has 96 divisors (see below), whose sum is σ = 4612608. Its totient is φ = 312000.

The previous prime is 1375481. The next prime is 1375513. The reversal of 1375500 is 55731.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 10435 + ... + 10565.

It is an arithmetic number, because the mean of its divisors is an integer number (48048).

2^1375500 is an apocalyptic number.

1375500 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 1375500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2306304).

1375500 is an abundant number, since it is smaller than the sum of its proper divisors (3237108).

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

1375500 is a wasteful number, since it uses less digits than its factorization.

1375500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 525, while the sum is 21.

The square root of 1375500 is about 1172.8171212939. The cubic root of 1375500 is about 111.2124815622.

The spelling of 1375500 in words is "one million, three hundred seventy-five thousand, five hundred".