1331925 has 48 divisors (see below), whose sum is σ = 2618880. Its totient is φ = 584640.

The previous prime is 1331923. The next prime is 1331929. The reversal of 1331925 is 5291331.

It is a happy number.

It is not a de Polignac number, because 1331925 - 2¹ = 1331923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1331895 and 1331904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331921) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22546 + ... + 22604.

It is an arithmetic number, because the mean of its divisors is an integer number (54560).

2^1331925 is an apocalyptic number.

1331925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1331925 is a deficient number, since it is larger than the sum of its proper divisors (1286955).

1331925 is a wasteful number, since it uses less digits than its factorization.

1331925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 117 counting only the distinct ones).

The product of its digits is 810, while the sum is 24.

The square root of 1331925 is about 1154.0905510401. The cubic root of 1331925 is about 110.0254761929.

The spelling of 1331925 in words is "one million, three hundred thirty-one thousand, nine hundred twenty-five".