145231201405145 has 8 divisors (see below), whose sum is σ = 174278038837320. Its totient is φ = 116184563023360.

The previous prime is 145231201405141. The next prime is 145231201405153. The reversal of 145231201405145 is 541504102132541.

It can be written as a sum of positive squares in 4 ways, for example, as 511552522441 + 144719648882704 = 715229^2 + 12029948^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145231201405145 - 2² = 145231201405141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145231201405099 and 145231201405108.

It is not an unprimeable number, because it can be changed into a prime (145231201405141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48152696 + ... + 51079785.

It is an arithmetic number, because the mean of its divisors is an integer number (21784754854665).

Almost surely, 2^{145231201405145} is an apocalyptic number.

It is an amenable number.

145231201405145 is a deficient number, since it is larger than the sum of its proper divisors (29046837432175).

145231201405145 is an equidigital number, since it uses as much as digits as its factorization.

145231201405145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99525195.

The product of its (nonzero) digits is 96000, while the sum is 38.

Adding to 145231201405145 its reverse (541504102132541), we get a palindrome (686735303537686).

The spelling of 145231201405145 in words is "one hundred forty-five trillion, two hundred thirty-one billion, two hundred one million, four hundred five thousand, one hundred forty-five".