1240353053 has 2 divisors, whose sum is σ = 1240353054. Its totient is φ = 1240353052.

The previous prime is 1240353043. The next prime is 1240353061. The reversal of 1240353053 is 3503530421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1208396644 + 31956409 = 34762^2 + 5653^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240353053 - 2⁶ = 1240352989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240353043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620176526 + 620176527.

It is an arithmetic number, because the mean of its divisors is an integer number (620176527).

Almost surely, 2^1240353053 is an apocalyptic number.

It is an amenable number.

1240353053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240353053 is an equidigital number, since it uses as much as digits as its factorization.

1240353053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 1240353053 is about 35218.6463822788. The cubic root of 1240353053 is about 1074.4390231217.

Adding to 1240353053 its reverse (3503530421), we get a palindrome (4743883474).

It can be divided in two parts, 12403 and 53053, that added together give a palindrome (65456).

The spelling of 1240353053 in words is "one billion, two hundred forty million, three hundred fifty-three thousand, fifty-three".