145001022241 has 4 divisors (see below), whose sum is σ = 146630247300. Its totient is φ = 143371797184.

The previous prime is 145001022223. The next prime is 145001022277. The reversal of 145001022241 is 142220100541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142220100541 = 157 ⋅905860513.

It can be written as a sum of positive squares in 2 ways, for example, as 76893071616 + 68107950625 = 277296^2 + 260975^2 .

It is a cyclic number.

It is not a de Polignac number, because 145001022241 - 2⁵ = 145001022209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145001022541) 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, 814612396 + ... + 814612573.

It is an arithmetic number, because the mean of its divisors is an integer number (36657561825).

Almost surely, 2^145001022241 is an apocalyptic number.

It is an amenable number.

145001022241 is a deficient number, since it is larger than the sum of its proper divisors (1629225059).

145001022241 is an equidigital number, since it uses as much as digits as its factorization.

145001022241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629225058.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 145001022241 its reverse (142220100541), we get a palindrome (287221122782).

The spelling of 145001022241 in words is "one hundred forty-five billion, one million, twenty-two thousand, two hundred forty-one".