1240230253 has 8 divisors (see below), whose sum is σ = 1248732576. Its totient is φ = 1231743600.

The previous prime is 1240230247. The next prime is 1240230283. The reversal of 1240230253 is 3520320421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1240230253 - 2⁵ = 1240230221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240230283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185458 + ... + 192028.

It is an arithmetic number, because the mean of its divisors is an integer number (156091572).

Almost surely, 2^1240230253 is an apocalyptic number.

It is an amenable number.

1240230253 is a deficient number, since it is larger than the sum of its proper divisors (8502323).

1240230253 is a wasteful number, since it uses less digits than its factorization.

1240230253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7835.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1240230253 is about 35216.9029444669. The cubic root of 1240230253 is about 1074.4035640062.

Adding to 1240230253 its reverse (3520320421), we get a palindrome (4760550674).

The spelling of 1240230253 in words is "one billion, two hundred forty million, two hundred thirty thousand, two hundred fifty-three".