1240291053 has 24 divisors (see below), whose sum is σ = 1870354200. Its totient is φ = 791005824.

The previous prime is 1240291033. The next prime is 1240291067. The reversal of 1240291053 is 3501920421.

It can be written as a sum of positive squares in 4 ways, for example, as 30503529 + 1209787524 = 5523^2 + 34782^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1240291053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240291033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6651 + ... + 50247.

It is an arithmetic number, because the mean of its divisors is an integer number (77931425).

Almost surely, 2^1240291053 is an apocalyptic number.

It is an amenable number.

1240291053 is a deficient number, since it is larger than the sum of its proper divisors (630063147).

1240291053 is a wasteful number, since it uses less digits than its factorization.

1240291053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43741 (or 43738 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1240291053 is about 35217.7661557345. The cubic root of 1240291053 is about 1074.4211206035.

The spelling of 1240291053 in words is "one billion, two hundred forty million, two hundred ninety-one thousand, fifty-three".