12142137 has 24 divisors (see below), whose sum is σ = 19359424. Its totient is φ = 6630624.

The previous prime is 12142129. The next prime is 12142139. The reversal of 12142137 is 73124121.

12142137 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12142137 - 2³ = 12142129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

12142137 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (12142139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10563 + ... + 11655.

Almost surely, 2^12142137 is an apocalyptic number.

It is an amenable number.

12142137 is a deficient number, since it is larger than the sum of its proper divisors (7217287).

12142137 is a wasteful number, since it uses less digits than its factorization.

12142137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149 (or 1126 counting only the distinct ones).

The product of its digits is 336, while the sum is 21.

The square root of 12142137 is about 3484.5569302280. The cubic root of 12142137 is about 229.8432264970.

Adding to 12142137 its reverse (73124121), we get a palindrome (85266258).

The spelling of 12142137 in words is "twelve million, one hundred forty-two thousand, one hundred thirty-seven".