254161247 has 4 divisors (see below), whose sum is σ = 265211760. Its totient is φ = 243110736.

The previous prime is 254161241. The next prime is 254161291. The reversal of 254161247 is 742161452.

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

It is not a de Polignac number, because 254161247 - 2⁶ = 254161183 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 (254161241) 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, 5525222 + ... + 5525267.

It is an arithmetic number, because the mean of its divisors is an integer number (66302940).

Almost surely, 2^254161247 is an apocalyptic number.

254161247 is a deficient number, since it is larger than the sum of its proper divisors (11050513).

254161247 is a wasteful number, since it uses less digits than its factorization.

254161247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11050512.

The product of its digits is 13440, while the sum is 32.

The square root of 254161247 is about 15942.4354162092. The cubic root of 254161247 is about 633.4365380906.

The spelling of 254161247 in words is "two hundred fifty-four million, one hundred sixty-one thousand, two hundred forty-seven".