254145245 has 4 divisors (see below), whose sum is σ = 304974300. Its totient is φ = 203316192.

The previous prime is 254145217. The next prime is 254145247. The reversal of 254145245 is 542541452.

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 181333156 + 72812089 = 13466^2 + 8533^2 .

It is a cyclic number.

It is not a de Polignac number, because 254145245 - 2⁶ = 254145181 is a prime.

It is a super-2 number, since 2×254145245² = 129179611112220050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254145247) 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, 25414520 + ... + 25414529.

It is an arithmetic number, because the mean of its divisors is an integer number (76243575).

Almost surely, 2^254145245 is an apocalyptic number.

It is an amenable number.

254145245 is a deficient number, since it is larger than the sum of its proper divisors (50829055).

254145245 is an equidigital number, since it uses as much as digits as its factorization.

254145245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50829054.

The product of its digits is 32000, while the sum is 32.

The square root of 254145245 is about 15941.9335401952. The cubic root of 254145245 is about 633.4232440835.

Adding to 254145245 its reverse (542541452), we get a palindrome (796686697).

The spelling of 254145245 in words is "two hundred fifty-four million, one hundred forty-five thousand, two hundred forty-five".