1330409225 has 12 divisors (see below), whose sum is σ = 1652417676. Its totient is φ = 1062578880.

The previous prime is 1330409209. The next prime is 1330409243. The reversal of 1330409225 is 5229040331.

It can be written as a sum of positive squares in 6 ways, for example, as 197346304 + 1133062921 = 14048^2 + 33661^2 .

It is not a de Polignac number, because 1330409225 - 2⁴ = 1330409209 is a prime.

It is a Duffinian number.

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, 28082 + ... + 58731.

It is an arithmetic number, because the mean of its divisors is an integer number (137701473).

Almost surely, 2^1330409225 is an apocalyptic number.

It is an amenable number.

1330409225 is a deficient number, since it is larger than the sum of its proper divisors (322008451).

1330409225 is an equidigital number, since it uses as much as digits as its factorization.

1330409225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87436 (or 87431 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 1330409225 is about 36474.7751877925. The cubic root of 1330409225 is about 1099.8372279812.

Adding to 1330409225 its reverse (5229040331), we get a palindrome (6559449556).

The spelling of 1330409225 in words is "one billion, three hundred thirty million, four hundred nine thousand, two hundred twenty-five".