1512225 has 72 divisors (see below), whose sum is σ = 3249792. Its totient is φ = 662400.

The previous prime is 1512223. The next prime is 1512233. The reversal of 1512225 is 5222151.

It is not a de Polignac number, because 1512225 - 2¹ = 1512223 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1512198 and 1512207.

It is not an unprimeable number, because it can be changed into a prime (1512221) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 32152 + ... + 32198.

It is an arithmetic number, because the mean of its divisors is an integer number (45136).

2^1512225 is an apocalyptic number.

1512225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1512225 is an abundant number, since it is smaller than the sum of its proper divisors (1737567).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1512225 is a wasteful number, since it uses less digits than its factorization.

1512225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 79 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 1512225 is about 1229.7255791436. The cubic root of 1512225 is about 114.7815639315.

Adding to 1512225 its reverse (5222151), we get a palindrome (6734376).

The spelling of 1512225 in words is "one million, five hundred twelve thousand, two hundred twenty-five".