258673045 has 4 divisors (see below), whose sum is σ = 310407660. Its totient is φ = 206938432.

The previous prime is 258673033. The next prime is 258673057. The reversal of 258673045 is 540376852.

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

It is an interprime number because it is at equal distance from previous prime (258673033) and next prime (258673057).

It can be written as a sum of positive squares in 2 ways, for example, as 190412401 + 68260644 = 13799^2 + 8262^2 .

It is a cyclic number.

It is not a de Polignac number, because 258673045 - 2⁷ = 258672917 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 258672989 and 258673007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25867300 + ... + 25867309.

It is an arithmetic number, because the mean of its divisors is an integer number (77601915).

Almost surely, 2^258673045 is an apocalyptic number.

It is an amenable number.

258673045 is a deficient number, since it is larger than the sum of its proper divisors (51734615).

258673045 is an equidigital number, since it uses as much as digits as its factorization.

258673045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51734614.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 258673045 is about 16083.3157340146. The cubic root of 258673045 is about 637.1627702505.

The spelling of 258673045 in words is "two hundred fifty-eight million, six hundred seventy-three thousand, forty-five".