254487493 has 8 divisors (see below), whose sum is σ = 275242968. Its totient is φ = 233900544.

The previous prime is 254487491. The next prime is 254487511. The reversal of 254487493 is 394784452.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7306209 + 247181284 = 2703^2 + 15722^2 .

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 254487493 - 2¹ = 254487491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254487491) 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, 38980 + ... + 45037.

It is an arithmetic number, because the mean of its divisors is an integer number (34405371).

Almost surely, 2^254487493 is an apocalyptic number.

It is an amenable number.

254487493 is a deficient number, since it is larger than the sum of its proper divisors (20755475).

254487493 is a wasteful number, since it uses less digits than its factorization.

254487493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84263.

The product of its digits is 967680, while the sum is 46.

The square root of 254487493 is about 15952.6641348710. The cubic root of 254487493 is about 633.7074524277.

The spelling of 254487493 in words is "two hundred fifty-four million, four hundred eighty-seven thousand, four hundred ninety-three".