1217013 has 24 divisors (see below), whose sum is σ = 2002752. Its totient is φ = 653184.

The previous prime is 1217009. The next prime is 1217017. The reversal of 1217013 is 3107121.

It is an interprime number because it is at equal distance from previous prime (1217009) and next prime (1217017).

It is not a de Polignac number, because 1217013 - 2² = 1217009 is a prime.

It is a super-2 number, since 2×1217013² = 2962241284338, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1216983 and 1217001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1217017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2256 + ... + 2742.

It is an arithmetic number, because the mean of its divisors is an integer number (83448).

2^1217013 is an apocalyptic number.

It is an amenable number.

1217013 is a deficient number, since it is larger than the sum of its proper divisors (785739).

1217013 is a wasteful number, since it uses less digits than its factorization.

1217013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521 (or 514 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 1217013 is about 1103.1831216983. The cubic root of 1217013 is about 106.7656968766.

The spelling of 1217013 in words is "one million, two hundred seventeen thousand, thirteen".