12135477 has 8 divisors (see below), whose sum is σ = 16702720. Its totient is φ = 7829280.

The previous prime is 12135469. The next prime is 12135479. The reversal of 12135477 is 77453121.

12135477 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12135477 - 2³ = 12135469 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 (12135479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65152 + ... + 65337.

It is an arithmetic number, because the mean of its divisors is an integer number (2087840).

Almost surely, 2^12135477 is an apocalyptic number.

It is an amenable number.

12135477 is a deficient number, since it is larger than the sum of its proper divisors (4567243).

12135477 is a wasteful number, since it uses less digits than its factorization.

12135477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130523.

The product of its digits is 5880, while the sum is 30.

The square root of 12135477 is about 3483.6011539785. The cubic root of 12135477 is about 229.8011955693.

Adding to 12135477 its reverse (77453121), we get a palindrome (89588598).

The spelling of 12135477 in words is "twelve million, one hundred thirty-five thousand, four hundred seventy-seven".