258147 has 10 divisors (see below), whose sum is σ = 385748. Its totient is φ = 172044.

The previous prime is 258143. The next prime is 258157. The reversal of 258147 is 741852.

It is not a de Polignac number, because 258147 - 2² = 258143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 258147.

It is not an unprimeable number, because it can be changed into a prime (258143) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1513 + ... + 1674.

2²⁵⁸¹⁴⁷ is an apocalyptic number.

258147 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

258147 is a deficient number, since it is larger than the sum of its proper divisors (127601).

258147 is an equidigital number, since it uses as much as digits as its factorization.

258147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3199 (or 3190 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 258147 is about 508.0816863458. The cubic root of 258147 is about 63.6730559575.

Adding to 258147 its reverse (741852), we get a palindrome (999999).

It can be divided in two parts, 2581 and 47, that added together give a triangular number (2628 = T₇₂).

The spelling of 258147 in words is "two hundred fifty-eight thousand, one hundred forty-seven".