259139142 has 32 divisors (see below), whose sum is σ = 581468160. Its totient is φ = 85539240.

The previous prime is 259139141. The next prime is 259139159. The reversal of 259139142 is 241931952.

259139142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 259139097 and 259139106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259139141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17734 + ... + 28857.

It is an arithmetic number, because the mean of its divisors is an integer number (18170880).

Almost surely, 2^259139142 is an apocalyptic number.

259139142 is an abundant number, since it is smaller than the sum of its proper divisors (322329018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

259139142 is a wasteful number, since it uses less digits than its factorization.

259139142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46705 (or 46699 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 259139142 is about 16097.7992905863. The cubic root of 259139142 is about 637.5452369283.

The spelling of 259139142 in words is "two hundred fifty-nine million, one hundred thirty-nine thousand, one hundred forty-two".