12031151 has 6 divisors (see below), whose sum is σ = 13224456. Its totient is φ = 10937300.

The previous prime is 12031141. The next prime is 12031153. The reversal of 12031151 is 15113021.

It is a de Polignac number, because none of the positive numbers 2^k-12031151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49595 + ... + 49836.

It is an arithmetic number, because the mean of its divisors is an integer number (2204076).

Almost surely, 2^12031151 is an apocalyptic number.

12031151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12031151 is a deficient number, since it is larger than the sum of its proper divisors (1193305).

12031151 is an equidigital number, since it uses as much as digits as its factorization.

12031151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99453 (or 99442 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 12031151 is about 3468.5949604991. The cubic root of 12031151 is about 229.1407828544.

Adding to 12031151 its reverse (15113021), we get a palindrome (27144172).

The spelling of 12031151 in words is "twelve million, thirty-one thousand, one hundred fifty-one".