145411225 has 12 divisors (see below), whose sum is σ = 181909116. Its totient is φ = 115297280.

The previous prime is 145411213. The next prime is 145411229. The reversal of 145411225 is 522114541.

It can be written as a sum of positive squares in 6 ways, for example, as 55995289 + 89415936 = 7483^2 + 9456^2 .

It is not a de Polignac number, because 145411225 - 2⁵ = 145411193 is a prime.

It is a super-2 number, since 2×145411225² = 42288848712001250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 145411225.

It is not an unprimeable number, because it can be changed into a prime (145411229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22912 + ... + 28561.

It is an arithmetic number, because the mean of its divisors is an integer number (15159093).

Almost surely, 2^145411225 is an apocalyptic number.

It is an amenable number.

145411225 is a deficient number, since it is larger than the sum of its proper divisors (36497891).

145411225 is a wasteful number, since it uses less digits than its factorization.

145411225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51596 (or 51591 counting only the distinct ones).

The product of its digits is 1600, while the sum is 25.

The square root of 145411225 is about 12058.6576781995. The cubic root of 145411225 is about 525.8549636988.

Adding to 145411225 its reverse (522114541), we get a palindrome (667525766).

The spelling of 145411225 in words is "one hundred forty-five million, four hundred eleven thousand, two hundred twenty-five".