254742709 has 8 divisors (see below), whose sum is σ = 288777440. Its totient is φ = 222770736.

The previous prime is 254742647. The next prime is 254742721. The reversal of 254742709 is 907247452.

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

It is a cyclic number.

It is not a de Polignac number, because 254742709 - 2¹⁹ = 254218421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254742749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515427 + ... + 515920.

It is an arithmetic number, because the mean of its divisors is an integer number (36097180).

Almost surely, 2^254742709 is an apocalyptic number.

It is an amenable number.

254742709 is a deficient number, since it is larger than the sum of its proper divisors (34034731).

254742709 is a wasteful number, since it uses less digits than its factorization.

254742709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031379.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 254742709 is about 15960.6612958236. The cubic root of 254742709 is about 633.9192221618.

The spelling of 254742709 in words is "two hundred fifty-four million, seven hundred forty-two thousand, seven hundred nine".