12749210 has 8 divisors (see below), whose sum is σ = 22948596. Its totient is φ = 5099680.

The previous prime is 12749197. The next prime is 12749239. The reversal of 12749210 is 1294721.

It can be written as a sum of positive squares in 2 ways, for example, as 12737761 + 11449 = 3569^2 + 107^2 .

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

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 12749210.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637451 + ... + 637470.

Almost surely, 2^12749210 is an apocalyptic number.

12749210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12749210 is a deficient number, since it is larger than the sum of its proper divisors (10199386).

12749210 is a wasteful number, since it uses less digits than its factorization.

12749210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274928.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 12749210 is about 3570.6035904312. The cubic root of 12749210 is about 233.6116112989.

The spelling of 12749210 in words is "twelve million, seven hundred forty-nine thousand, two hundred ten".