1215717103 has 8 divisors (see below), whose sum is σ = 1260940320. Its totient is φ = 1171144800.

The previous prime is 1215717079. The next prime is 1215717119. The reversal of 1215717103 is 3017175121.

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 1215717103 - 2⁹ = 1215716591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215717143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158923 + ... + 166396.

It is an arithmetic number, because the mean of its divisors is an integer number (157617540).

Almost surely, 2^1215717103 is an apocalyptic number.

1215717103 is a deficient number, since it is larger than the sum of its proper divisors (45223217).

1215717103 is a wasteful number, since it uses less digits than its factorization.

1215717103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325457.

The product of its (nonzero) digits is 1470, while the sum is 28.

The square root of 1215717103 is about 34867.1349984480. The cubic root of 1215717103 is about 1067.2778808299.

The spelling of 1215717103 in words is "one billion, two hundred fifteen million, seven hundred seventeen thousand, one hundred three".