12031258 has 4 divisors (see below), whose sum is σ = 18046890. Its totient is φ = 6015628.

The previous prime is 12031249. The next prime is 12031267. The reversal of 12031258 is 85213021.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12031249) and next prime (12031267).

It can be written as a sum of positive squares in only one way, i.e., 8485569 + 3545689 = 2913^2 + 1883^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3007813 + ... + 3007816.

Almost surely, 2^12031258 is an apocalyptic number.

12031258 is a deficient number, since it is larger than the sum of its proper divisors (6015632).

12031258 is an equidigital number, since it uses as much as digits as its factorization.

12031258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6015631.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 12031258 is about 3468.6103845777. The cubic root of 12031258 is about 229.1414621463.

Adding to 12031258 its reverse (85213021), we get a palindrome (97244279).

The spelling of 12031258 in words is "twelve million, thirty-one thousand, two hundred fifty-eight".