2064139 has 12 divisors (see below), whose sum is σ = 2594032. Its totient is φ = 1607760.

The previous prime is 2064121. The next prime is 2064143. The reversal of 2064139 is 9314602.

It is not a de Polignac number, because 2064139 - 2⁹ = 2063627 is a prime.

It is a super-2 number, since 2×2064139² = 8521339622642, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

2064139 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2064109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 372 + ... + 2065.

2^2064139 is an apocalyptic number.

2064139 is a deficient number, since it is larger than the sum of its proper divisors (529893).

2064139 is a wasteful number, since it uses less digits than its factorization.

2064139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466 (or 2455 counting only the distinct ones).

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

The square root of 2064139 is about 1436.7111748713. The cubic root of 2064139 is about 127.3247933078.

The spelling of 2064139 in words is "two million, sixty-four thousand, one hundred thirty-nine".