2139069 has 16 divisors (see below), whose sum is σ = 3081600. Its totient is φ = 1315776.

The previous prime is 2139047. The next prime is 2139091. The reversal of 2139069 is 9609312.

2139069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2139047) and next prime (2139091).

It is not a de Polignac number, because 2139069 - 2⁸ = 2138813 is a prime.

It is a super-2 number, since 2×2139069² = 9151232373522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1467 + ... + 2535.

It is an arithmetic number, because the mean of its divisors is an integer number (192600).

2^2139069 is an apocalyptic number.

2139069 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2139069 is a deficient number, since it is larger than the sum of its proper divisors (942531).

2139069 is a wasteful number, since it uses less digits than its factorization.

2139069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 2139069 is about 1462.5556399672. Note that the first 3 decimals coincide. The cubic root of 2139069 is about 128.8471839845.

The spelling of 2139069 in words is "two million, one hundred thirty-nine thousand, sixty-nine".