1215054103 has 8 divisors (see below), whose sum is σ = 1222784640. Its totient is φ = 1207347000.

The previous prime is 1215054067. The next prime is 1215054119. The reversal of 1215054103 is 3014505121.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1215054103 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 (1215054163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104676 + ... + 115702.

It is an arithmetic number, because the mean of its divisors is an integer number (152848080).

Almost surely, 2^1215054103 is an apocalyptic number.

1215054103 is a deficient number, since it is larger than the sum of its proper divisors (7730537).

1215054103 is a wasteful number, since it uses less digits than its factorization.

1215054103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11717.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1215054103 is about 34857.6261813681. The cubic root of 1215054103 is about 1067.0838296797.

Adding to 1215054103 its reverse (3014505121), we get a palindrome (4229559224).

The spelling of 1215054103 in words is "one billion, two hundred fifteen million, fifty-four thousand, one hundred three".