258943157 has 4 divisors (see below), whose sum is σ = 282483456. Its totient is φ = 235402860.

The previous prime is 258943147. The next prime is 258943159. The reversal of 258943157 is 751349852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 258943157 - 2²² = 254748853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258943159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11770133 + ... + 11770154.

It is an arithmetic number, because the mean of its divisors is an integer number (70620864).

Almost surely, 2^258943157 is an apocalyptic number.

It is an amenable number.

258943157 is a deficient number, since it is larger than the sum of its proper divisors (23540299).

258943157 is a wasteful number, since it uses less digits than its factorization.

258943157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23540298.

The product of its digits is 302400, while the sum is 44.

The square root of 258943157 is about 16091.7108164421. The cubic root of 258943157 is about 637.3844728243.

The spelling of 258943157 in words is "two hundred fifty-eight million, nine hundred forty-three thousand, one hundred fifty-seven".