1241215115 has 8 divisors (see below), whose sum is σ = 1702237920. Its totient is φ = 851118912.

The previous prime is 1241215049. The next prime is 1241215121. The reversal of 1241215115 is 5115121421.

It is a happy number.

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

It is not a de Polignac number, because 1241215115 - 2²⁶ = 1174106251 is a prime.

It is a super-2 number, since 2×1241215115² = 3081229923408926450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17731610 + ... + 17731679.

It is an arithmetic number, because the mean of its divisors is an integer number (212779740).

Almost surely, 2^1241215115 is an apocalyptic number.

1241215115 is a deficient number, since it is larger than the sum of its proper divisors (461022805).

1241215115 is an equidigital number, since it uses as much as digits as its factorization.

1241215115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35463301.

The product of its digits is 400, while the sum is 23.

The square root of 1241215115 is about 35230.8829721879. The cubic root of 1241215115 is about 1074.6878819855.

Adding to 1241215115 its reverse (5115121421), we get a palindrome (6356336536).

The spelling of 1241215115 in words is "one billion, two hundred forty-one million, two hundred fifteen thousand, one hundred fifteen".