145273308081 has 16 divisors (see below), whose sum is σ = 214888101120. Its totient is φ = 86552149520.

The previous prime is 145273308079. The next prime is 145273308083. The reversal of 145273308081 is 180803372541.

It is an interprime number because it is at equal distance from previous prime (145273308079) and next prime (145273308083).

It is a cyclic number.

It is not a de Polignac number, because 145273308081 - 2¹ = 145273308079 is a prime.

It is a super-2 number, since 2×145273308081² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145273308083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37305015 + ... + 37308908.

It is an arithmetic number, because the mean of its divisors is an integer number (13430506320).

Almost surely, 2^145273308081 is an apocalyptic number.

145273308081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145273308081 is a deficient number, since it is larger than the sum of its proper divisors (69614793039).

145273308081 is a wasteful number, since it uses less digits than its factorization.

145273308081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74613996.

The product of its (nonzero) digits is 161280, while the sum is 42.

It can be divided in two parts, 145273 and 308081, that added together give a palindrome (453354).

The spelling of 145273308081 in words is "one hundred forty-five billion, two hundred seventy-three million, three hundred eight thousand, eighty-one".