2139029 has 4 divisors (see below), whose sum is σ = 2143200. Its totient is φ = 2134860.

The previous prime is 2139013. The next prime is 2139043. The reversal of 2139029 is 9209312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2139029 - 2⁴ = 2139013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2138989 and 2139007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2139829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1187 + ... + 2384.

It is an arithmetic number, because the mean of its divisors is an integer number (535800).

2^2139029 is an apocalyptic number.

It is an amenable number.

2139029 is a deficient number, since it is larger than the sum of its proper divisors (4171).

2139029 is an equidigital number, since it uses as much as digits as its factorization.

2139029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 2139029 is about 1462.5419652099. The cubic root of 2139029 is about 128.8463808439.

The spelling of 2139029 in words is "two million, one hundred thirty-nine thousand, twenty-nine".