12289485 has 64 divisors (see below), whose sum is σ = 23224320. Its totient is φ = 5495040.

The previous prime is 12289471. The next prime is 12289493. The reversal of 12289485 is 58498221.

It is not a de Polignac number, because 12289485 - 2¹¹ = 12287437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 114802 + ... + 114908.

It is an arithmetic number, because the mean of its divisors is an integer number (362880).

Almost surely, 2^12289485 is an apocalyptic number.

12289485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12289485 is a deficient number, since it is larger than the sum of its proper divisors (10934835).

12289485 is a wasteful number, since it uses less digits than its factorization.

12289485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178.

The product of its digits is 46080, while the sum is 39.

The square root of 12289485 is about 3505.6361762168. The cubic root of 12289485 is about 230.7692266239.

The spelling of 12289485 in words is "twelve million, two hundred eighty-nine thousand, four hundred eighty-five".