1241360521 has 4 divisors (see below), whose sum is σ = 1258844544. Its totient is φ = 1223876500.

The previous prime is 1241360513. The next prime is 1241360537. The reversal of 1241360521 is 1250631421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1250631421 = 13 ⋅96202417.

It is a cyclic number.

It is not a de Polignac number, because 1241360521 - 2³ = 1241360513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1241360501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8741905 + ... + 8742046.

It is an arithmetic number, because the mean of its divisors is an integer number (314711136).

Almost surely, 2^1241360521 is an apocalyptic number.

It is an amenable number.

1241360521 is a deficient number, since it is larger than the sum of its proper divisors (17484023).

1241360521 is an equidigital number, since it uses as much as digits as its factorization.

1241360521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17484022.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1241360521 is about 35232.9465273627. The cubic root of 1241360521 is about 1074.7298462302.

Adding to 1241360521 its reverse (1250631421), we get a palindrome (2491991942).

The spelling of 1241360521 in words is "one billion, two hundred forty-one million, three hundred sixty thousand, five hundred twenty-one".