1241250513 has 16 divisors (see below), whose sum is σ = 1725451200. Its totient is φ = 793001664.

The previous prime is 1241250511. The next prime is 1241250533. The reversal of 1241250513 is 3150521421.

It is a happy number.

It is not a de Polignac number, because 1241250513 - 2¹ = 1241250511 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1241250511) 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, 83938 + ... + 97611.

It is an arithmetic number, because the mean of its divisors is an integer number (107840700).

Almost surely, 2^1241250513 is an apocalyptic number.

It is an amenable number.

1241250513 is a deficient number, since it is larger than the sum of its proper divisors (484200687).

1241250513 is a wasteful number, since it uses less digits than its factorization.

1241250513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181648.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1241250513 is about 35231.3853403468. The cubic root of 1241250513 is about 1074.6980981679.

Adding to 1241250513 its reverse (3150521421), we get a palindrome (4391771934).

The spelling of 1241250513 in words is "one billion, two hundred forty-one million, two hundred fifty thousand, five hundred thirteen".