145304144 has 10 divisors (see below), whose sum is σ = 281526810. Its totient is φ = 72652064.

The previous prime is 145304141. The next prime is 145304149. The reversal of 145304144 is 441403541.

It is a happy number.

145304144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 134281744 + 11022400 = 11588^2 + 3320^2 .

It is a super-2 number, since 2×145304144² = 42226588527145472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145304141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4540739 + ... + 4540770.

It is an arithmetic number, because the mean of its divisors is an integer number (28152681).

Almost surely, 2^145304144 is an apocalyptic number.

It is an amenable number.

145304144 is a deficient number, since it is larger than the sum of its proper divisors (136222666).

145304144 is an equidigital number, since it uses as much as digits as its factorization.

145304144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9081517 (or 9081511 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 145304144 is about 12054.2168555240. The cubic root of 145304144 is about 525.7258519262.

Adding to 145304144 its reverse (441403541), we get a palindrome (586707685).

The spelling of 145304144 in words is "one hundred forty-five million, three hundred four thousand, one hundred forty-four".