254140066 has 8 divisors (see below), whose sum is σ = 381277980. Its totient is φ = 127047408.

The previous prime is 254140063. The next prime is 254140093. The reversal of 254140066 is 660041452.

It can be written as a sum of positive squares in 2 ways, for example, as 235469025 + 18671041 = 15345^2 + 4321^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (254140063) 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, 14580 + ... + 26848.

Almost surely, 2^254140066 is an apocalyptic number.

254140066 is a deficient number, since it is larger than the sum of its proper divisors (127137914).

254140066 is a wasteful number, since it uses less digits than its factorization.

254140066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22628.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 254140066 is about 15941.7711061224. The cubic root of 254140066 is about 633.4189413979.

The spelling of 254140066 in words is "two hundred fifty-four million, one hundred forty thousand, sixty-six".