1241515213 has 2 divisors, whose sum is σ = 1241515214. Its totient is φ = 1241515212.

The previous prime is 1241515141. The next prime is 1241515243. The reversal of 1241515213 is 3125151421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1101376969 + 140138244 = 33187^2 + 11838^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1241515213 is a prime.

It is a super-2 number, since 2×1241515213² = 3082720048220870738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1241515243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620757606 + 620757607.

It is an arithmetic number, because the mean of its divisors is an integer number (620757607).

Almost surely, 2^1241515213 is an apocalyptic number.

It is an amenable number.

1241515213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241515213 is an equidigital number, since it uses as much as digits as its factorization.

1241515213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 25.

The square root of 1241515213 is about 35235.1417337862. The cubic root of 1241515213 is about 1074.7744868218.

Adding to 1241515213 its reverse (3125151421), we get a palindrome (4366666634).

The spelling of 1241515213 in words is "one billion, two hundred forty-one million, five hundred fifteen thousand, two hundred thirteen".