258491954 has 12 divisors (see below), whose sum is σ = 451042254. Its totient is φ = 110782224.

The previous prime is 258491939. The next prime is 258491969. The reversal of 258491954 is 459194852.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (258491939) and next prime (258491969).

It can be written as a sum of positive squares in only one way, i.e., 218359729 + 40132225 = 14777^2 + 6335^2 .

It is a junction number, because it is equal to n+sod(n) for n = 258491899 and 258491908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1318739 + ... + 1318934.

Almost surely, 2^258491954 is an apocalyptic number.

258491954 is a deficient number, since it is larger than the sum of its proper divisors (192550300).

258491954 is a wasteful number, since it uses less digits than its factorization.

258491954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637689 (or 2637682 counting only the distinct ones).

The product of its digits is 518400, while the sum is 47.

The square root of 258491954 is about 16077.6849701691. The cubic root of 258491954 is about 637.0140479130.

The spelling of 258491954 in words is "two hundred fifty-eight million, four hundred ninety-one thousand, nine hundred fifty-four".