12130477 has 2 divisors, whose sum is σ = 12130478. Its totient is φ = 12130476.

The previous prime is 12130471. The next prime is 12130507. The reversal of 12130477 is 77403121.

It is a happy number.

12130477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6245001 + 5885476 = 2499^2 + 2426^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12130477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12130471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6065238 + 6065239.

It is an arithmetic number, because the mean of its divisors is an integer number (6065239).

Almost surely, 2^12130477 is an apocalyptic number.

It is an amenable number.

12130477 is a deficient number, since it is larger than the sum of its proper divisors (1).

12130477 is an equidigital number, since it uses as much as digits as its factorization.

12130477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 12130477 is about 3482.8834318708. The cubic root of 12130477 is about 229.7696307115.

Adding to 12130477 its reverse (77403121), we get a palindrome (89533598).

The spelling of 12130477 in words is "twelve million, one hundred thirty thousand, four hundred seventy-seven".