1521125 has 16 divisors (see below), whose sum is σ = 1949376. Its totient is φ = 1184400.

The previous prime is 1521119. The next prime is 1521133. The reversal of 1521125 is 5211251.

It is a de Polignac number, because none of the positive numbers 2^k-1521125 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5234 + ... + 5516.

It is an arithmetic number, because the mean of its divisors is an integer number (121836).

2^1521125 is an apocalyptic number.

It is an amenable number.

1521125 is a deficient number, since it is larger than the sum of its proper divisors (428251).

1521125 is an equidigital number, since it uses as much as digits as its factorization.

1521125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 331 counting only the distinct ones).

The product of its digits is 100, while the sum is 17.

The square root of 1521125 is about 1233.3389639511. The cubic root of 1521125 is about 115.0063008520.

Adding to 1521125 its reverse (5211251), we get a palindrome (6732376).

The spelling of 1521125 in words is "one million, five hundred twenty-one thousand, one hundred twenty-five".