258423113 has 4 divisors (see below), whose sum is σ = 278301828. Its totient is φ = 238544400.

The previous prime is 258423107. The next prime is 258423149. The reversal of 258423113 is 311324852.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66129424 + 192293689 = 8132^2 + 13867^2 .

It is a cyclic number.

It is not a de Polignac number, because 258423113 - 2⁴ = 258423097 is a prime.

It is a super-2 number, since 2×258423113² = 133565010665221538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258423013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9939338 + ... + 9939363.

It is an arithmetic number, because the mean of its divisors is an integer number (69575457).

Almost surely, 2^258423113 is an apocalyptic number.

It is an amenable number.

258423113 is a deficient number, since it is larger than the sum of its proper divisors (19878715).

258423113 is a wasteful number, since it uses less digits than its factorization.

258423113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19878714.

The product of its digits is 5760, while the sum is 29.

The square root of 258423113 is about 16075.5439410304. The cubic root of 258423113 is about 636.9574935060.

Adding to 258423113 its reverse (311324852), we get a palindrome (569747965).

The spelling of 258423113 in words is "two hundred fifty-eight million, four hundred twenty-three thousand, one hundred thirteen".