254863161 has 36 divisors (see below), whose sum is σ = 446876352. Its totient is φ = 139298544.

The previous prime is 254863157. The next prime is 254863181. The reversal of 254863161 is 161368452.

It is a happy number.

It is not a de Polignac number, because 254863161 - 2² = 254863157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (254863181) 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, 2421 + ... + 22706.

It is an arithmetic number, because the mean of its divisors is an integer number (12413232).

Almost surely, 2^254863161 is an apocalyptic number.

254863161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

254863161 is a deficient number, since it is larger than the sum of its proper divisors (192013191).

254863161 is a wasteful number, since it uses less digits than its factorization.

254863161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25170 (or 25160 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 254863161 is about 15964.4342524250. The cubic root of 254863161 is about 634.0191200900.

The spelling of 254863161 in words is "two hundred fifty-four million, eight hundred sixty-three thousand, one hundred sixty-one".