1217513 has 8 divisors (see below), whose sum is σ = 1338816. Its totient is φ = 1098000.

The previous prime is 1217509. The next prime is 1217521. The reversal of 1217513 is 3157121.

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

It is a cyclic number.

It is not a de Polignac number, because 1217513 - 2² = 1217509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1217533) 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 7 ways as a sum of consecutive naturals, for example, 1295 + ... + 2027.

It is an arithmetic number, because the mean of its divisors is an integer number (167352).

2^1217513 is an apocalyptic number.

It is an amenable number.

1217513 is a deficient number, since it is larger than the sum of its proper divisors (121303).

1217513 is a wasteful number, since it uses less digits than its factorization.

1217513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895.

The product of its digits is 210, while the sum is 20.

The square root of 1217513 is about 1103.4097153823. The cubic root of 1217513 is about 106.7803161506.

The spelling of 1217513 in words is "one million, two hundred seventeen thousand, five hundred thirteen".