1253340140445 has 48 divisors (see below), whose sum is σ = 2192213333232. Its totient is φ = 662395944960.

The previous prime is 1253340140417. The next prime is 1253340140467. The reversal of 1253340140445 is 5440410433521.

1253340140445 is a `hidden beast` number, since 1 + 2 + 5 + 33 + 40 + 140 + 445 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 111386916 + 1253228753529 = 10554^2 + 1119477^2 .

It is not a de Polignac number, because 1253340140445 - 2⁸ = 1253340140189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1951285 + ... + 2512805.

It is an arithmetic number, because the mean of its divisors is an integer number (45671111109).

Almost surely, 2^{1253340140445} is an apocalyptic number.

1253340140445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1253340140445 is a deficient number, since it is larger than the sum of its proper divisors (938873192787).

1253340140445 is a wasteful number, since it uses less digits than its factorization.

1253340140445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561982 (or 561979 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 1253340140445 its reverse (5440410433521), we get a palindrome (6693750573966).

The spelling of 1253340140445 in words is "one trillion, two hundred fifty-three billion, three hundred forty million, one hundred forty thousand, four hundred forty-five".