1375825 has 12 divisors (see below), whose sum is σ = 1861488. Its totient is φ = 1000400.

The previous prime is 1375823. The next prime is 1375853. The reversal of 1375825 is 5285731.

It is not a de Polignac number, because 1375825 - 2¹ = 1375823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1375823) 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, 2227 + ... + 2776.

It is an arithmetic number, because the mean of its divisors is an integer number (155124).

2^1375825 is an apocalyptic number.

It is an amenable number.

1375825 is a deficient number, since it is larger than the sum of its proper divisors (485663).

1375825 is a wasteful number, since it uses less digits than its factorization.

1375825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5024 (or 5019 counting only the distinct ones).

The product of its digits is 8400, while the sum is 31.

The square root of 1375825 is about 1172.9556683865. The cubic root of 1375825 is about 111.2212398829.

The spelling of 1375825 in words is "one million, three hundred seventy-five thousand, eight hundred twenty-five".