145230210145 has 4 divisors (see below), whose sum is σ = 174276252180. Its totient is φ = 116184168112.

The previous prime is 145230210143. The next prime is 145230210217. The reversal of 145230210145 is 541012032541.

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

It can be written as a sum of positive squares in 2 ways, for example, as 72364766049 + 72865444096 = 269007^2 + 269936^2 .

It is a cyclic number.

It is not a de Polignac number, because 145230210145 - 2¹ = 145230210143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145230210143) 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, 14523021010 + ... + 14523021019.

It is an arithmetic number, because the mean of its divisors is an integer number (43569063045).

Almost surely, 2^145230210145 is an apocalyptic number.

It is an amenable number.

145230210145 is a deficient number, since it is larger than the sum of its proper divisors (29046042035).

145230210145 is an equidigital number, since it uses as much as digits as its factorization.

145230210145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29046042034.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 145230210145 its reverse (541012032541), we get a palindrome (686242242686).

The spelling of 145230210145 in words is "one hundred forty-five billion, two hundred thirty million, two hundred ten thousand, one hundred forty-five".