258981 has 8 divisors (see below), whose sum is σ = 348000. Its totient is φ = 171312.

The previous prime is 258977. The next prime is 258983. The reversal of 258981 is 189852.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 258981 - 2² = 258977 is a prime.

It is a super-2 number, since 2×258981² = 134142316722, which contains 22 as substring.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 258981.

It is not an unprimeable number, because it can be changed into a prime (258983) 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, 270 + ... + 768.

It is an arithmetic number, because the mean of its divisors is an integer number (43500).

2²⁵⁸⁹⁸¹ is an apocalyptic number.

It is an amenable number.

258981 is a deficient number, since it is larger than the sum of its proper divisors (89019).

258981 is a wasteful number, since it uses less digits than its factorization.

258981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675.

The product of its digits is 5760, while the sum is 33.

The square root of 258981 is about 508.9017586922. The cubic root of 258981 is about 63.7415521293.

The spelling of 258981 in words is "two hundred fifty-eight thousand, nine hundred eighty-one".