2139258 has 16 divisors (see below), whose sum is σ = 4667616. Its totient is φ = 648240.

The previous prime is 2139233. The next prime is 2139283. The reversal of 2139258 is 8529312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2139233) and next prime (2139283).

It is a d-powerful number, because it can be written as 2¹² + 1 + 3¹¹ + 9³ + 2¹² + 5⁹ + 8² .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16141 + ... + 16272.

It is an arithmetic number, because the mean of its divisors is an integer number (291726).

2^2139258 is an apocalyptic number.

2139258 is an abundant number, since it is smaller than the sum of its proper divisors (2528358).

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

2139258 is a wasteful number, since it uses less digits than its factorization.

2139258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32429.

The product of its digits is 4320, while the sum is 30.

The square root of 2139258 is about 1462.6202514665. The cubic root of 2139258 is about 128.8509786885.

The spelling of 2139258 in words is "two million, one hundred thirty-nine thousand, two hundred fifty-eight".