145142235300241 has 4 divisors (see below), whose sum is σ = 153680013847332. Its totient is φ = 136604456753152.

The previous prime is 145142235300211. The next prime is 145142235300247. The reversal of 145142235300241 is 142003532241541.

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 130815033753600 + 14327201546641 = 11437440^2 + 3785129^2 .

It is a cyclic number.

It is not a de Polignac number, because 145142235300241 - 2⁷ = 145142235300113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145142235300241.

It is not an unprimeable number, because it can be changed into a prime (145142235300247) 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, 4268889273520 + ... + 4268889273553.

It is an arithmetic number, because the mean of its divisors is an integer number (38420003461833).

Almost surely, 2^{145142235300241} is an apocalyptic number.

It is an amenable number.

145142235300241 is a deficient number, since it is larger than the sum of its proper divisors (8537778547091).

145142235300241 is an equidigital number, since it uses as much as digits as its factorization.

145142235300241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8537778547090.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 145142235300241 its reverse (142003532241541), we get a palindrome (287145767541782).

The spelling of 145142235300241 in words is "one hundred forty-five trillion, one hundred forty-two billion, two hundred thirty-five million, three hundred thousand, two hundred forty-one".