2175042839 has 2 divisors, whose sum is σ = 2175042840. Its totient is φ = 2175042838.

The previous prime is 2175042799. The next prime is 2175042851. The reversal of 2175042839 is 9382405712.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2175042839 is a prime.

It is a super-2 number, since 2×2175042839² = 9461622702970359842, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2175042796 and 2175042805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2175042889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1087521419 + 1087521420.

It is an arithmetic number, because the mean of its divisors is an integer number (1087521420).

Almost surely, 2^2175042839 is an apocalyptic number.

2175042839 is a deficient number, since it is larger than the sum of its proper divisors (1).

2175042839 is an equidigital number, since it uses as much as digits as its factorization.

2175042839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 2175042839 is about 46637.3545454714. The cubic root of 2175042839 is about 1295.6546908028.

The spelling of 2175042839 in words is "two billion, one hundred seventy-five million, forty-two thousand, eight hundred thirty-nine".