1250521241 has 4 divisors (see below), whose sum is σ = 1324081332. Its totient is φ = 1176961152.

The previous prime is 1250521231. The next prime is 1250521253. The reversal of 1250521241 is 1421250521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 385926025 + 864595216 = 19645^2 + 29404^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250521241 - 2⁶ = 1250521177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1250521231) by changing a digit.

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, 36780020 + ... + 36780053.

It is an arithmetic number, because the mean of its divisors is an integer number (331020333).

Almost surely, 2^1250521241 is an apocalyptic number.

It is an amenable number.

1250521241 is a deficient number, since it is larger than the sum of its proper divisors (73560091).

1250521241 is an equidigital number, since it uses as much as digits as its factorization.

1250521241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73560090.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1250521241 is about 35362.7097519407. The cubic root of 1250521241 is about 1077.3670548342.

Adding to 1250521241 its reverse (1421250521), we get a palindrome (2671771762).

The spelling of 1250521241 in words is "one billion, two hundred fifty million, five hundred twenty-one thousand, two hundred forty-one".