254064861 has 6 divisors (see below), whose sum is σ = 366982590. Its totient is φ = 169376568.

The previous prime is 254064841. The next prime is 254064883. The reversal of 254064861 is 168460452.

254064861 is a `hidden beast` number, since 2 + 5 + 4 + 0 + 648 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 130988025 + 123076836 = 11445^2 + 11094^2 .

It is not a de Polignac number, because 254064861 - 2¹⁴ = 254048477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254064821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14114706 + ... + 14114723.

It is an arithmetic number, because the mean of its divisors is an integer number (61163765).

Almost surely, 2^254064861 is an apocalyptic number.

It is an amenable number.

254064861 is a deficient number, since it is larger than the sum of its proper divisors (112917729).

254064861 is a wasteful number, since it uses less digits than its factorization.

254064861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28229435 (or 28229432 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 254064861 is about 15939.4121911694. The cubic root of 254064861 is about 633.3564548961.

The spelling of 254064861 in words is "two hundred fifty-four million, sixty-four thousand, eight hundred sixty-one".