12142877 has 4 divisors (see below), whose sum is σ = 12155136. Its totient is φ = 12130620.

The previous prime is 12142829. The next prime is 12142891. The reversal of 12142877 is 77824121.

It is a happy number.

12142877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77824121 = 269 ⋅289309.

It is a cyclic number.

It is not a de Polignac number, because 12142877 - 2⁸ = 12142621 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 (12142807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4499 + ... + 6672.

It is an arithmetic number, because the mean of its divisors is an integer number (3038784).

Almost surely, 2^12142877 is an apocalyptic number.

It is an amenable number.

12142877 is a deficient number, since it is larger than the sum of its proper divisors (12259).

12142877 is a wasteful number, since it uses less digits than its factorization.

12142877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12258.

The product of its digits is 6272, while the sum is 32.

The square root of 12142877 is about 3484.6631114069. The cubic root of 12142877 is about 229.8478956513.

Adding to 12142877 its reverse (77824121), we get a palindrome (89966998).

The spelling of 12142877 in words is "twelve million, one hundred forty-two thousand, eight hundred seventy-seven".