12731098 has 8 divisors (see below), whose sum is σ = 19927008. Its totient is φ = 6088764.

The previous prime is 12731093. The next prime is 12731099. The reversal of 12731098 is 89013721.

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

It is not an unprimeable number, because it can be changed into a prime (12731093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138336 + ... + 138427.

It is an arithmetic number, because the mean of its divisors is an integer number (2490876).

Almost surely, 2^12731098 is an apocalyptic number.

12731098 is a deficient number, since it is larger than the sum of its proper divisors (7195910).

12731098 is a wasteful number, since it uses less digits than its factorization.

12731098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276788.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 12731098 is about 3568.0664231485. The cubic root of 12731098 is about 233.5009331016.

The spelling of 12731098 in words is "twelve million, seven hundred thirty-one thousand, ninety-eight".