254861091 has 36 divisors (see below), whose sum is σ = 388206000. Its totient is φ = 161102304.

The previous prime is 254861039. The next prime is 254861149. The reversal of 254861091 is 190168452.

254861091 is a `hidden beast` number, since 2 + 548 + 6 + 109 + 1 = 666.

It is not a de Polignac number, because 254861091 - 2¹⁸ = 254598947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254861021) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 947305 + ... + 947573.

It is an arithmetic number, because the mean of its divisors is an integer number (10783500).

Almost surely, 2^254861091 is an apocalyptic number.

254861091 is a deficient number, since it is larger than the sum of its proper divisors (133344909).

254861091 is a wasteful number, since it uses less digits than its factorization.

254861091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 254861091 is about 15964.3694206818. The cubic root of 254861091 is about 634.0174035831.

The spelling of 254861091 in words is "two hundred fifty-four million, eight hundred sixty-one thousand, ninety-one".