12748031 has 8 divisors (see below), whose sum is σ = 13559280. Its totient is φ = 11950848.

The previous prime is 12748027. The next prime is 12748061. The reversal of 12748031 is 13084721.

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

It is not a de Polignac number, because 12748031 - 2² = 12748027 is a prime.

It is a super-2 number, since 2×12748031² = 325024588753922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12748061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1616 + ... + 5301.

It is an arithmetic number, because the mean of its divisors is an integer number (1694910).

Almost surely, 2^12748031 is an apocalyptic number.

12748031 is a deficient number, since it is larger than the sum of its proper divisors (811249).

12748031 is an equidigital number, since it uses as much as digits as its factorization.

12748031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7033.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 12748031 is about 3570.4384884773. The cubic root of 12748031 is about 233.6044098963.

The spelling of 12748031 in words is "twelve million, seven hundred forty-eight thousand, thirty-one".