2275129 has 4 divisors (see below), whose sum is σ = 2323584. Its totient is φ = 2226676.

The previous prime is 2275103. The next prime is 2275139. The reversal of 2275129 is 9215722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2275129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2275097 and 2275106.

It is not an unprimeable number, because it can be changed into a prime (2275139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24157 + ... + 24250.

It is an arithmetic number, because the mean of its divisors is an integer number (580896).

2^2275129 is an apocalyptic number.

It is an amenable number.

2275129 is a deficient number, since it is larger than the sum of its proper divisors (48455).

2275129 is an equidigital number, since it uses as much as digits as its factorization.

2275129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48454.

The product of its digits is 2520, while the sum is 28.

The square root of 2275129 is about 1508.3530753772. The cubic root of 2275129 is about 131.5230915513.

It can be divided in two parts, 227 and 5129, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 2275129 in words is "two million, two hundred seventy-five thousand, one hundred twenty-nine".