1241215104 has 128 divisors (see below), whose sum is σ = 3406636800. Its totient is φ = 400195584.

The previous prime is 1241215049. The next prime is 1241215121. The reversal of 1241215104 is 4015121421.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1241215104² = 3081229868795461632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1750302 + ... + 1751010.

It is an arithmetic number, because the mean of its divisors is an integer number (26614350).

Almost surely, 2^1241215104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1241215104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1703318400).

1241215104 is an abundant number, since it is smaller than the sum of its proper divisors (2165421696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1241215104 is an equidigital number, since it uses as much as digits as its factorization.

1241215104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870 (or 858 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1241215104 is about 35230.8828160749. The cubic root of 1241215104 is about 1074.6878788108.

Adding to 1241215104 its reverse (4015121421), we get a palindrome (5256336525).

The spelling of 1241215104 in words is "one billion, two hundred forty-one million, two hundred fifteen thousand, one hundred four".