2756123 has 2 divisors, whose sum is σ = 2756124. Its totient is φ = 2756122.

The previous prime is 2756119. The next prime is 2756129. The reversal of 2756123 is 3216572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2756123 - 2² = 2756119 is a prime.

It is a super-2 number, since 2×2756123² = 15192427982258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2756092 and 2756101.

It is not a weakly prime, because it can be changed into another prime (2756129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1378061 + 1378062.

It is an arithmetic number, because the mean of its divisors is an integer number (1378062).

2^2756123 is an apocalyptic number.

2756123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2756123 is an equidigital number, since it uses as much as digits as its factorization.

2756123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 26.

The square root of 2756123 is about 1660.1575226466. The cubic root of 2756123 is about 140.2058705874.

The spelling of 2756123 in words is "two million, seven hundred fifty-six thousand, one hundred twenty-three".