2152775 has 6 divisors (see below), whose sum is σ = 2669472. Its totient is φ = 1722200.

The previous prime is 2152753. The next prime is 2152783. The reversal of 2152775 is 5772512.

It is not a de Polignac number, because 2152775 - 2¹⁴ = 2136391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43031 + ... + 43080.

It is an arithmetic number, because the mean of its divisors is an integer number (444912).

2^2152775 is an apocalyptic number.

2152775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2152775 is a deficient number, since it is larger than the sum of its proper divisors (516697).

2152775 is an equidigital number, since it uses as much as digits as its factorization.

2152775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86121 (or 86116 counting only the distinct ones).

The product of its digits is 4900, while the sum is 29.

The square root of 2152775 is about 1467.2337918682. The cubic root of 2152775 is about 129.1217927136.

The spelling of 2152775 in words is "two million, one hundred fifty-two thousand, seven hundred seventy-five".