1252215 has 12 divisors (see below), whose sum is σ = 2170584. Its totient is φ = 667824.

The previous prime is 1252211. The next prime is 1252217. The reversal of 1252215 is 5122521.

It is not a de Polignac number, because 1252215 - 2² = 1252211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13869 + ... + 13958.

It is an arithmetic number, because the mean of its divisors is an integer number (180882).

2^1252215 is an apocalyptic number.

1252215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1252215 is a deficient number, since it is larger than the sum of its proper divisors (918369).

1252215 is a wasteful number, since it uses less digits than its factorization.

1252215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27838 (or 27835 counting only the distinct ones).

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

The square root of 1252215 is about 1119.0241284262. The cubic root of 1252215 is about 107.7853245937.

Adding to 1252215 its reverse (5122521), we get a palindrome (6374736).

The spelling of 1252215 in words is "one million, two hundred fifty-two thousand, two hundred fifteen".