1547225 has 12 divisors (see below), whose sum is σ = 1934400. Its totient is φ = 1227600.

The previous prime is 1547213. The next prime is 1547239. The reversal of 1547225 is 5227451.

It is not a de Polignac number, because 1547225 - 2⁸ = 1546969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1547194 and 1547203.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4820 + ... + 5130.

It is an arithmetic number, because the mean of its divisors is an integer number (161200).

2^1547225 is an apocalyptic number.

It is an amenable number.

1547225 is a deficient number, since it is larger than the sum of its proper divisors (387175).

1547225 is a wasteful number, since it uses less digits than its factorization.

1547225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 515 counting only the distinct ones).

The product of its digits is 2800, while the sum is 26.

The square root of 1547225 is about 1243.8749937192. The cubic root of 1547225 is about 115.6603471186.

Adding to 1547225 its product of digits (2800), we get a square (1550025 = 1245²).

The spelling of 1547225 in words is "one million, five hundred forty-seven thousand, two hundred twenty-five".