1241440521 has 16 divisors (see below), whose sum is σ = 1778785344. Its totient is φ = 767314944.

The previous prime is 1241440507. The next prime is 1241440547. The reversal of 1241440521 is 1250441421.

1241440521 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1241440521 - 2⁵ = 1241440489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1241440491 and 1241440500.

It is not an unprimeable number, because it can be changed into a prime (1241444521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178240 + ... + 185073.

It is an arithmetic number, because the mean of its divisors is an integer number (111174084).

Almost surely, 2^1241440521 is an apocalyptic number.

It is an amenable number.

1241440521 is a deficient number, since it is larger than the sum of its proper divisors (537344823).

1241440521 is a wasteful number, since it uses less digits than its factorization.

1241440521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363400.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 1241440521 is about 35234.0818100884. The cubic root of 1241440521 is about 1074.7529328730.

Adding to 1241440521 its reverse (1250441421), we get a palindrome (2491881942).

The spelling of 1241440521 in words is "one billion, two hundred forty-one million, four hundred forty thousand, five hundred twenty-one".