12780153 has 16 divisors (see below), whose sum is σ = 19545600. Its totient is φ = 8244720.

The previous prime is 12780149. The next prime is 12780169. The reversal of 12780153 is 35108721.

It is not a de Polignac number, because 12780153 - 2² = 12780149 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 not an unprimeable number, because it can be changed into a prime (12780113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6798 + ... + 8471.

It is an arithmetic number, because the mean of its divisors is an integer number (1221600).

Almost surely, 2^12780153 is an apocalyptic number.

It is an amenable number.

12780153 is a deficient number, since it is larger than the sum of its proper divisors (6765447).

12780153 is a wasteful number, since it uses less digits than its factorization.

12780153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15309 (or 15303 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 12780153 is about 3574.9339854045. The cubic root of 12780153 is about 233.8004544733.

Adding to 12780153 its reverse (35108721), we get a palindrome (47888874).

The spelling of 12780153 in words is "twelve million, seven hundred eighty thousand, one hundred fifty-three".