1253105908081 has 8 divisors (see below), whose sum is σ = 1253463197000. Its totient is φ = 1252748685312.

The previous prime is 1253105908039. The next prime is 1253105908091. The reversal of 1253105908081 is 1808095013521.

It can be written as a sum of positive squares in 4 ways, for example, as 108293646400 + 1144812261681 = 329080^2 + 1069959^2 .

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 1253105908081 - 2¹³ = 1253105899889 is a prime.

It is a super-2 number, since 2×1253105908081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253105908091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94574545 + ... + 94587793.

It is an arithmetic number, because the mean of its divisors is an integer number (156682899625).

Almost surely, 2^{1253105908081} is an apocalyptic number.

It is an amenable number.

1253105908081 is a deficient number, since it is larger than the sum of its proper divisors (357288919).

1253105908081 is a wasteful number, since it uses less digits than its factorization.

1253105908081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33075.

The product of its (nonzero) digits is 86400, while the sum is 43.

The spelling of 1253105908081 in words is "one trillion, two hundred fifty-three billion, one hundred five million, nine hundred eight thousand, eighty-one".