12142471 has 12 divisors (see below), whose sum is σ = 14134176. Its totient is φ = 10387520.

The previous prime is 12142451. The next prime is 12142499. The reversal of 12142471 is 17424121.

It is not a de Polignac number, because 12142471 - 2⁵ = 12142439 is a prime.

It is a super-3 number, since 3×12142471³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142411) 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, 895 + ... + 5008.

It is an arithmetic number, because the mean of its divisors is an integer number (1177848).

Almost surely, 2^12142471 is an apocalyptic number.

12142471 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12142471 is a deficient number, since it is larger than the sum of its proper divisors (1991705).

12142471 is a wasteful number, since it uses less digits than its factorization.

12142471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5942 (or 5931 counting only the distinct ones).

The product of its digits is 448, while the sum is 22.

The square root of 12142471 is about 3484.6048556472. The cubic root of 12142471 is about 229.8453339496.

Adding to 12142471 its reverse (17424121), we get a palindrome (29566592).

The spelling of 12142471 in words is "twelve million, one hundred forty-two thousand, four hundred seventy-one".