1247013 has 12 divisors (see below), whose sum is σ = 1817088. Its totient is φ = 824040.

The previous prime is 1247009. The next prime is 1247017. The reversal of 1247013 is 3107421.

It is an interprime number because it is at equal distance from previous prime (1247009) and next prime (1247017).

It is not a de Polignac number, because 1247013 - 2² = 1247009 is a prime.

1247013 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 598 + ... + 1688.

It is an arithmetic number, because the mean of its divisors is an integer number (151424).

2^1247013 is an apocalyptic number.

It is an amenable number.

1247013 is a deficient number, since it is larger than the sum of its proper divisors (570075).

1247013 is a wasteful number, since it uses less digits than its factorization.

1247013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224 (or 1221 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1247013 is about 1116.6973627622. The cubic root of 1247013 is about 107.6358621128.

The spelling of 1247013 in words is "one million, two hundred forty-seven thousand, thirteen".