153252145 has 4 divisors (see below), whose sum is σ = 183902580. Its totient is φ = 122601712.

The previous prime is 153252139. The next prime is 153252149. The reversal of 153252145 is 541252351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541252351 = 6091 ⋅88861.

It can be written as a sum of positive squares in 2 ways, for example, as 60341824 + 92910321 = 7768^2 + 9639^2 .

It is a cyclic number.

It is not a de Polignac number, because 153252145 - 2¹⁵ = 153219377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (153252149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15325210 + ... + 15325219.

It is an arithmetic number, because the mean of its divisors is an integer number (45975645).

Almost surely, 2^153252145 is an apocalyptic number.

It is an amenable number.

153252145 is a deficient number, since it is larger than the sum of its proper divisors (30650435).

153252145 is an equidigital number, since it uses as much as digits as its factorization.

153252145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30650434.

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

The square root of 153252145 is about 12379.5050385708. The cubic root of 153252145 is about 535.1417739388.

The spelling of 153252145 in words is "one hundred fifty-three million, two hundred fifty-two thousand, one hundred forty-five".