145514225 has 6 divisors (see below), whose sum is σ = 180437670. Its totient is φ = 116411360.

The previous prime is 145514221. The next prime is 145514227. The reversal of 145514225 is 522415541.

It can be written as a sum of positive squares in 3 ways, for example, as 1129969 + 144384256 = 1063^2 + 12016^2 .

It is not a de Polignac number, because 145514225 - 2² = 145514221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145514221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2910260 + ... + 2910309.

It is an arithmetic number, because the mean of its divisors is an integer number (30072945).

Almost surely, 2^145514225 is an apocalyptic number.

It is an amenable number.

145514225 is a deficient number, since it is larger than the sum of its proper divisors (34923445).

145514225 is an equidigital number, since it uses as much as digits as its factorization.

145514225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5820579 (or 5820574 counting only the distinct ones).

The product of its digits is 8000, while the sum is 29.

The square root of 145514225 is about 12062.9277126243. The cubic root of 145514225 is about 525.9790950551.

Adding to 145514225 its reverse (522415541), we get a palindrome (667929766).

The spelling of 145514225 in words is "one hundred forty-five million, five hundred fourteen thousand, two hundred twenty-five".