1241539828 has 12 divisors (see below), whose sum is σ = 2173094980. Its totient is φ = 620655552.

The previous prime is 1241539823. The next prime is 1241539841. The reversal of 1241539828 is 8289351421.

It can be written as a sum of positive squares in 2 ways, for example, as 1164310884 + 77228944 = 34122^2 + 8788^2 .

It is a super-2 number, since 2×1241539828² = 3082842289020539168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241539823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263 + ... + 49846.

Almost surely, 2^1241539828 is an apocalyptic number.

It is an amenable number.

1241539828 is a deficient number, since it is larger than the sum of its proper divisors (931555152).

1241539828 is a wasteful number, since it uses less digits than its factorization.

1241539828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57186 (or 57184 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 1241539828 is about 35235.4910282232. The cubic root of 1241539828 is about 1074.7815898087.

The spelling of 1241539828 in words is "one billion, two hundred forty-one million, five hundred thirty-nine thousand, eight hundred twenty-eight".