2152277 has 4 divisors (see below), whose sum is σ = 2192940. Its totient is φ = 2111616.

The previous prime is 2152247. The next prime is 2152291. The reversal of 2152277 is 7722512.

2152277 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 988036 + 1164241 = 994^2 + 1079^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2152277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20252 + ... + 20357.

It is an arithmetic number, because the mean of its divisors is an integer number (548235).

2^2152277 is an apocalyptic number.

It is an amenable number.

2152277 is a deficient number, since it is larger than the sum of its proper divisors (40663).

2152277 is an equidigital number, since it uses as much as digits as its factorization.

2152277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40662.

The product of its digits is 1960, while the sum is 26.

The square root of 2152277 is about 1467.0640749470. The cubic root of 2152277 is about 129.1118353931. Note that the first 3 decimals are identical.

Adding to 2152277 its reverse (7722512), we get a palindrome (9874789).

It can be divided in two parts, 215 and 2277, that multiplied together give a triangular number (489555 = T₉₈₉).

The spelling of 2152277 in words is "two million, one hundred fifty-two thousand, two hundred seventy-seven".