254538145 has 4 divisors (see below), whose sum is σ = 305445780. Its totient is φ = 203630512.

The previous prime is 254538143. The next prime is 254538149. The reversal of 254538145 is 541835452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 182763361 + 71774784 = 13519^2 + 8472^2 .

It is a cyclic number.

It is not a de Polignac number, because 254538145 - 2¹ = 254538143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (254538143) 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, 25453810 + ... + 25453819.

It is an arithmetic number, because the mean of its divisors is an integer number (76361445).

Almost surely, 2^254538145 is an apocalyptic number.

It is an amenable number.

254538145 is a deficient number, since it is larger than the sum of its proper divisors (50907635).

254538145 is an equidigital number, since it uses as much as digits as its factorization.

254538145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50907634.

The product of its digits is 96000, while the sum is 37.

The square root of 254538145 is about 15954.2516277010. The cubic root of 254538145 is about 633.7494930275.

The spelling of 254538145 in words is "two hundred fifty-four million, five hundred thirty-eight thousand, one hundred forty-five".