1212725 has 12 divisors (see below), whose sum is σ = 1517760. Its totient is φ = 961200.

The previous prime is 1212719. The next prime is 1212737. The reversal of 1212725 is 5272121.

It is not a de Polignac number, because 1212725 - 2⁴ = 1212709 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1212697 and 1212706.

It is a congruent 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, 4340 + ... + 4610.

It is an arithmetic number, because the mean of its divisors is an integer number (126480).

2^1212725 is an apocalyptic number.

It is an amenable number.

1212725 is a deficient number, since it is larger than the sum of its proper divisors (305035).

1212725 is a wasteful number, since it uses less digits than its factorization.

1212725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 455 counting only the distinct ones).

The product of its digits is 280, while the sum is 20.

The square root of 1212725 is about 1101.2379397751. The cubic root of 1212725 is about 106.6401572578.

Adding to 1212725 its reverse (5272121), we get a palindrome (6484846).

The spelling of 1212725 in words is "one million, two hundred twelve thousand, seven hundred twenty-five".