1545425 has 12 divisors (see below), whose sum is σ = 2190336. Its totient is φ = 1059600.

The previous prime is 1545421. The next prime is 1545431. The reversal of 1545425 is 5245451.

It is not a de Polignac number, because 1545425 - 2² = 1545421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1545394 and 1545403.

It is not an unprimeable number, because it can be changed into a prime (1545421) 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, 4241 + ... + 4590.

It is an arithmetic number, because the mean of its divisors is an integer number (182528).

2^1545425 is an apocalyptic number.

It is an amenable number.

1545425 is a deficient number, since it is larger than the sum of its proper divisors (644911).

1545425 is an equidigital number, since it uses as much as digits as its factorization.

1545425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8848 (or 8843 counting only the distinct ones).

The product of its digits is 4000, while the sum is 26.

The square root of 1545425 is about 1243.1512377824. The cubic root of 1545425 is about 115.6154776672.

Adding to 1545425 its sum of digits (26), we get a palindrome (1545451).

The spelling of 1545425 in words is "one million, five hundred forty-five thousand, four hundred twenty-five".