2139026 has 16 divisors (see below), whose sum is σ = 3314520. Its totient is φ = 1034880.

The previous prime is 2139013. The next prime is 2139043. The reversal of 2139026 is 6209312.

It can be written as a sum of positive squares in 4 ways, for example, as 1575025 + 564001 = 1255^2 + 751^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2138992 and 2139010.

It is a congruent number.

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, 10760 + ... + 10956.

2^2139026 is an apocalyptic number.

2139026 is a deficient number, since it is larger than the sum of its proper divisors (1175494).

2139026 is a wasteful number, since it uses less digits than its factorization.

2139026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2139026 is about 1462.5409395979. The cubic root of 2139026 is about 128.8463206080.

The spelling of 2139026 in words is "two million, one hundred thirty-nine thousand, twenty-six".