12731470 has 16 divisors (see below), whose sum is σ = 24265008. Its totient is φ = 4792960.

The previous prime is 12731449. The next prime is 12731471. The reversal of 12731470 is 7413721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12731471) 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, 37276 + ... + 37615.

It is an arithmetic number, because the mean of its divisors is an integer number (1516563).

Almost surely, 2^12731470 is an apocalyptic number.

12731470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12731470 is a deficient number, since it is larger than the sum of its proper divisors (11533538).

12731470 is a wasteful number, since it uses less digits than its factorization.

12731470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74915.

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

The square root of 12731470 is about 3568.1185518421. The cubic root of 12731470 is about 233.5032073621.

The spelling of 12731470 in words is "twelve million, seven hundred thirty-one thousand, four hundred seventy".