12140277 has 4 divisors (see below), whose sum is σ = 16187040. Its totient is φ = 8093516.

The previous prime is 12140273. The next prime is 12140287. The reversal of 12140277 is 77204121.

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: 77204121 = 3 ⋅25734707.

It is a cyclic number.

It is not a de Polignac number, because 12140277 - 2² = 12140273 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12140273) 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, 2023377 + ... + 2023382.

It is an arithmetic number, because the mean of its divisors is an integer number (4046760).

Almost surely, 2^12140277 is an apocalyptic number.

It is an amenable number.

12140277 is a deficient number, since it is larger than the sum of its proper divisors (4046763).

12140277 is an equidigital number, since it uses as much as digits as its factorization.

12140277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4046762.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 12140277 is about 3484.2900281119. The cubic root of 12140277 is about 229.8314896770.

Adding to 12140277 its reverse (77204121), we get a palindrome (89344398).

The spelling of 12140277 in words is "twelve million, one hundred forty thousand, two hundred seventy-seven".