145505266241 has 4 divisors (see below), whose sum is σ = 145506879684. Its totient is φ = 145503652800.

The previous prime is 145505266223. The next prime is 145505266259. The reversal of 145505266241 is 142662505541.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (145505266223) and next prime (145505266259).

It can be written as a sum of positive squares in 2 ways, for example, as 134854200625 + 10651065616 = 367225^2 + 103204^2 .

It is a cyclic number.

It is not a de Polignac number, because 145505266241 - 2⁶ = 145505266177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145505266541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662900 + ... + 854661.

It is an arithmetic number, because the mean of its divisors is an integer number (36376719921).

Almost surely, 2^145505266241 is an apocalyptic number.

It is an amenable number.

145505266241 is a deficient number, since it is larger than the sum of its proper divisors (1613443).

145505266241 is an equidigital number, since it uses as much as digits as its factorization.

145505266241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613442.

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 145505266241 in words is "one hundred forty-five billion, five hundred five million, two hundred sixty-six thousand, two hundred forty-one".