1213252 has 6 divisors (see below), whose sum is σ = 2123198. Its totient is φ = 606624.

The previous prime is 1213241. The next prime is 1213253. The reversal of 1213252 is 2523121.

It can be written as a sum of positive squares in only one way, i.e., 1179396 + 33856 = 1086^2 + 184^2 .

It is not an unprimeable number, because it can be changed into a prime (1213253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151653 + ... + 151660.

2^1213252 is an apocalyptic number.

It is an amenable number.

1213252 is a deficient number, since it is larger than the sum of its proper divisors (909946).

1213252 is a wasteful number, since it uses less digits than its factorization.

1213252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303317 (or 303315 counting only the distinct ones).

The product of its digits is 120, while the sum is 16.

The square root of 1213252 is about 1101.4771899590. The cubic root of 1213252 is about 106.6556021509.

Adding to 1213252 its reverse (2523121), we get a palindrome (3736373).

The spelling of 1213252 in words is "one million, two hundred thirteen thousand, two hundred fifty-two".