254045345 has 4 divisors (see below), whose sum is σ = 304854420. Its totient is φ = 203236272.

The previous prime is 254045317. The next prime is 254045347. The reversal of 254045345 is 543540452.

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 149842081 + 104203264 = 12241^2 + 10208^2 .

It is a cyclic number.

It is not a de Polignac number, because 254045345 - 2²⁰ = 252996769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (254045347) 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 3 ways as a sum of consecutive naturals, for example, 25404530 + ... + 25404539.

It is an arithmetic number, because the mean of its divisors is an integer number (76213605).

Almost surely, 2^254045345 is an apocalyptic number.

It is an amenable number.

254045345 is a deficient number, since it is larger than the sum of its proper divisors (50809075).

254045345 is an equidigital number, since it uses as much as digits as its factorization.

254045345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50809074.

The product of its (nonzero) digits is 48000, while the sum is 32.

The square root of 254045345 is about 15938.7999861972. The cubic root of 254045345 is about 633.3402373824.

Adding to 254045345 its reverse (543540452), we get a palindrome (797585797).

The spelling of 254045345 in words is "two hundred fifty-four million, forty-five thousand, three hundred forty-five".