2139056 has 10 divisors (see below), whose sum is σ = 4144452. Its totient is φ = 1069520.

The previous prime is 2139047. The next prime is 2139091. The reversal of 2139056 is 6509312.

It is a super-2 number, since 2×2139056² = 9151121142272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66830 + ... + 66861.

2^2139056 is an apocalyptic number.

It is an amenable number.

2139056 is a deficient number, since it is larger than the sum of its proper divisors (2005396).

2139056 is a wasteful number, since it uses less digits than its factorization.

2139056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133699 (or 133693 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 2139056 is about 1462.5511956851. The cubic root of 2139056 is about 128.8469229649.

The spelling of 2139056 in words is "two million, one hundred thirty-nine thousand, fifty-six".