12151143 has 6 divisors (see below), whose sum is σ = 17551664. Its totient is φ = 8100756.

The previous prime is 12151103. The next prime is 12151147. The reversal of 12151143 is 34115121.

It is a de Polignac number, because none of the positive numbers 2^k-12151143 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 (12151147) 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, 675055 + ... + 675072.

Almost surely, 2^12151143 is an apocalyptic number.

12151143 is a deficient number, since it is larger than the sum of its proper divisors (5400521).

12151143 is a wasteful number, since it uses less digits than its factorization.

12151143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350133 (or 1350130 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 12151143 is about 3485.8489640258. The cubic root of 12151143 is about 229.9000384770.

Adding to 12151143 its reverse (34115121), we get a palindrome (46266264).

The spelling of 12151143 in words is "twelve million, one hundred fifty-one thousand, one hundred forty-three".