2139046 has 48 divisors (see below), whose sum is σ = 4251744. Its totient is φ = 798336.

The previous prime is 2139043. The next prime is 2139047. The reversal of 2139046 is 6409312.

2139046 = T₁₆₈ + T₁₆₉ + ... + T₂₅₉.

It is a self number, because there is not a number n which added to its sum of digits gives 2139046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2139043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29266 + ... + 29338.

It is an arithmetic number, because the mean of its divisors is an integer number (88578).

2^2139046 is an apocalyptic number.

2139046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2139046 is a deficient number, since it is larger than the sum of its proper divisors (2112698).

2139046 is a wasteful number, since it uses less digits than its factorization.

2139046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2139046 is about 1462.5477769974. The cubic root of 2139046 is about 128.8467221799.

The spelling of 2139046 in words is "two million, one hundred thirty-nine thousand, forty-six".