1241253536 has 24 divisors (see below), whose sum is σ = 2445255540. Its totient is φ = 620236288.

The previous prime is 1241253511. The next prime is 1241253569. The reversal of 1241253536 is 6353521421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 915667600 + 325585936 = 30260^2 + 18044^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43340 + ... + 66036.

Almost surely, 2^1241253536 is an apocalyptic number.

1241253536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1241253536 is a deficient number, since it is larger than the sum of its proper divisors (1204002004).

1241253536 is a wasteful number, since it uses less digits than its factorization.

1241253536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24416 (or 24408 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 1241253536 is about 35231.4282424088. The cubic root of 1241253536 is about 1074.6989706240.

Adding to 1241253536 its reverse (6353521421), we get a palindrome (7594774957).

The spelling of 1241253536 in words is "one billion, two hundred forty-one million, two hundred fifty-three thousand, five hundred thirty-six".