1520725 has 12 divisors (see below), whose sum is σ = 1919520. Its totient is φ = 1194800.

The previous prime is 1520723. The next prime is 1520747. The reversal of 1520725 is 5270251.

It is not a de Polignac number, because 1520725 - 2¹ = 1520723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1520696 and 1520705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520723) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 960 + ... + 1990.

It is an arithmetic number, because the mean of its divisors is an integer number (159960).

2^1520725 is an apocalyptic number.

It is an amenable number.

1520725 is a deficient number, since it is larger than the sum of its proper divisors (398795).

1520725 is a wasteful number, since it uses less digits than its factorization.

1520725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100 (or 1095 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 1520725 is about 1233.1767918672. The cubic root of 1520725 is about 114.9962191574.

Adding to 1520725 its reverse (5270251), we get a palindrome (6790976).

The spelling of 1520725 in words is "one million, five hundred twenty thousand, seven hundred twenty-five".