258502142 has 4 divisors (see below), whose sum is σ = 387753216. Its totient is φ = 129251070.

The previous prime is 258502133. The next prime is 258502159. The reversal of 258502142 is 241205852.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64625534 + ... + 64625537.

It is an arithmetic number, because the mean of its divisors is an integer number (96938304).

Almost surely, 2^258502142 is an apocalyptic number.

258502142 is a deficient number, since it is larger than the sum of its proper divisors (129251074).

258502142 is a wasteful number, since it uses less digits than its factorization.

258502142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129251073.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 258502142 is about 16078.0018037068. The cubic root of 258502142 is about 637.0224167278.

Adding to 258502142 its reverse (241205852), we get a palindrome (499707994).

The spelling of 258502142 in words is "two hundred fifty-eight million, five hundred two thousand, one hundred forty-two".