1240123252 has 24 divisors (see below), whose sum is σ = 2200074912. Its totient is φ = 611556000.

The previous prime is 1240123249. The next prime is 1240123273. The reversal of 1240123252 is 2523210421.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 216627 + ... + 222277.

It is an arithmetic number, because the mean of its divisors is an integer number (91669788).

Almost surely, 2^1240123252 is an apocalyptic number.

It is an amenable number.

1240123252 is a deficient number, since it is larger than the sum of its proper divisors (959951660).

1240123252 is a wasteful number, since it uses less digits than its factorization.

1240123252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6399 (or 6397 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1240123252 is about 35215.3837406324. The cubic root of 1240123252 is about 1074.3726650228.

Adding to 1240123252 its reverse (2523210421), we get a palindrome (3763333673).

It can be divided in two parts, 12401 and 23252, that added together give a palindrome (35653).

The spelling of 1240123252 in words is "one billion, two hundred forty million, one hundred twenty-three thousand, two hundred fifty-two".