259221142 has 16 divisors (see below), whose sum is σ = 415065600. Its totient is φ = 121058280.

The previous prime is 259221139. The next prime is 259221173. The reversal of 259221142 is 241122952.

It is a self number, because there is not a number n which added to its sum of digits gives 259221142.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 45342 + ... + 50737.

It is an arithmetic number, because the mean of its divisors is an integer number (25941600).

Almost surely, 2^259221142 is an apocalyptic number.

259221142 is a deficient number, since it is larger than the sum of its proper divisors (155844458).

259221142 is a wasteful number, since it uses less digits than its factorization.

259221142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96171.

The product of its digits is 2880, while the sum is 28.

The square root of 259221142 is about 16100.3460211264. The cubic root of 259221142 is about 637.6124764761.

The spelling of 259221142 in words is "two hundred fifty-nine million, two hundred twenty-one thousand, one hundred forty-two".