2155073 has 6 divisors (see below), whose sum is σ = 2289606. Its totient is φ = 2028032.

The previous prime is 2155067. The next prime is 2155079. The reversal of 2155073 is 3705512.

It is an interprime number because it is at equal distance from previous prime (2155067) and next prime (2155079).

It can be written as a sum of positive squares in 3 ways, for example, as 659344 + 1495729 = 812^2 + 1223^2 .

It is not a de Polignac number, because 2155073 - 2⁴ = 2155057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2155079) 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 5 ways as a sum of consecutive naturals, for example, 3440 + ... + 4017.

It is an arithmetic number, because the mean of its divisors is an integer number (381601).

2^2155073 is an apocalyptic number.

It is an amenable number.

2155073 is a deficient number, since it is larger than the sum of its proper divisors (134533).

2155073 is an equidigital number, since it uses as much as digits as its factorization.

2155073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7491 (or 7474 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 2155073 is about 1468.0166892784. The cubic root of 2155073 is about 129.1677204678.

The spelling of 2155073 in words is "two million, one hundred fifty-five thousand, seventy-three".