12653145 has 32 divisors (see below), whose sum is σ = 23683200. Its totient is φ = 6391872.

The previous prime is 12653141. The next prime is 12653153. The reversal of 12653145 is 54135621.

12653145 is a `hidden beast` number, since 1 + 2 + 653 + 1 + 4 + 5 = 666.

It is not a de Polignac number, because 12653145 - 2² = 12653141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12653141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99 + ... + 5031.

It is an arithmetic number, because the mean of its divisors is an integer number (740100).

Almost surely, 2^12653145 is an apocalyptic number.

12653145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12653145 is a deficient number, since it is larger than the sum of its proper divisors (11030055).

12653145 is a wasteful number, since it uses less digits than its factorization.

12653145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4966 (or 4960 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 12653145 is about 3557.1259466035. The cubic root of 12653145 is about 233.0233786951.

Adding to 12653145 its reverse (54135621), we get a palindrome (66788766).

The spelling of 12653145 in words is "twelve million, six hundred fifty-three thousand, one hundred forty-five".