153225145 has 4 divisors (see below), whose sum is σ = 183870180. Its totient is φ = 122580112.

The previous prime is 153225143. The next prime is 153225151. The reversal of 153225145 is 541522351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541522351 = 173 ⋅3130187.

It can be written as a sum of positive squares in 2 ways, for example, as 95023504 + 58201641 = 9748^2 + 7629^2 .

It is a cyclic number.

It is not a de Polignac number, because 153225145 - 2¹ = 153225143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (153225143) 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, 15322510 + ... + 15322519.

It is an arithmetic number, because the mean of its divisors is an integer number (45967545).

Almost surely, 2^153225145 is an apocalyptic number.

It is an amenable number.

153225145 is a deficient number, since it is larger than the sum of its proper divisors (30645035).

153225145 is an equidigital number, since it uses as much as digits as its factorization.

153225145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30645034.

The product of its digits is 6000, while the sum is 28.

The square root of 153225145 is about 12378.4144784379. The cubic root of 153225145 is about 535.1103449572.

Adding to 153225145 its reverse (541522351), we get a palindrome (694747496).

The spelling of 153225145 in words is "one hundred fifty-three million, two hundred twenty-five thousand, one hundred forty-five".