2139177 has 4 divisors (see below), whose sum is σ = 2852240. Its totient is φ = 1426116.

The previous prime is 2139167. The next prime is 2139199. The reversal of 2139177 is 7719312.

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 not a de Polignac number, because 2139177 - 2¹⁴ = 2122793 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2139107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356527 + ... + 356532.

It is an arithmetic number, because the mean of its divisors is an integer number (713060).

2^2139177 is an apocalyptic number.

It is an amenable number.

2139177 is a deficient number, since it is larger than the sum of its proper divisors (713063).

2139177 is an equidigital number, since it uses as much as digits as its factorization.

2139177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713062.

The product of its digits is 2646, while the sum is 30.

The square root of 2139177 is about 1462.5925611735. The cubic root of 2139177 is about 128.8493524142.

The spelling of 2139177 in words is "two million, one hundred thirty-nine thousand, one hundred seventy-seven".