1395025 has 12 divisors (see below), whose sum is σ = 1773324. Its totient is φ = 1088000.

The previous prime is 1395001. The next prime is 1395029. The reversal of 1395025 is 5205931.

It can be written as a sum of positive squares in 6 ways, for example, as 450241 + 944784 = 671^2 + 972^2 .

It is not a de Polignac number, because 1395025 - 2⁵ = 1394993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

1395025 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395029) 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, 345 + ... + 1705.

It is an arithmetic number, because the mean of its divisors is an integer number (147777).

2^1395025 is an apocalyptic number.

It is an amenable number.

1395025 is a deficient number, since it is larger than the sum of its proper divisors (378299).

1395025 is a wasteful number, since it uses less digits than its factorization.

1395025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412 (or 1407 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 1395025 is about 1181.1117643983. Note that the first 3 decimals coincide. The cubic root of 1395025 is about 111.7362255659.

The spelling of 1395025 in words is "one million, three hundred ninety-five thousand, twenty-five".