12252132 has 18 divisors (see below), whose sum is σ = 30970758. Its totient is φ = 4084032.

The previous prime is 12252113. The next prime is 12252151. The reversal of 12252132 is 23125221.

It is an interprime number because it is at equal distance from previous prime (12252113) and next prime (12252151).

It can be written as a sum of positive squares in only one way, i.e., 6230016 + 6022116 = 2496^2 + 2454^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×12252132² = 300229477090848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 170133 + ... + 170204.

Almost surely, 2^12252132 is an apocalyptic number.

12252132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12252132 is an abundant number, since it is smaller than the sum of its proper divisors (18718626).

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

12252132 is a wasteful number, since it uses less digits than its factorization.

12252132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340347 (or 340342 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 12252132 is about 3500.3045581778. The cubic root of 12252132 is about 230.5351872288.

Adding to 12252132 its reverse (23125221), we get a palindrome (35377353).

The spelling of 12252132 in words is "twelve million, two hundred fifty-two thousand, one hundred thirty-two".