2774129 has 2 divisors, whose sum is σ = 2774130. Its totient is φ = 2774128.

The previous prime is 2774117. The next prime is 2774137. The reversal of 2774129 is 9214772.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2496400 + 277729 = 1580^2 + 527^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2774129 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2774095 and 2774104.

It is not a weakly prime, because it can be changed into another prime (2774729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1387064 + 1387065.

It is an arithmetic number, because the mean of its divisors is an integer number (1387065).

2^2774129 is an apocalyptic number.

It is an amenable number.

2774129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2774129 is an equidigital number, since it uses as much as digits as its factorization.

2774129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 32.

The square root of 2774129 is about 1665.5716736304. The cubic root of 2774129 is about 140.5105339468.

The spelling of 2774129 in words is "two million, seven hundred seventy-four thousand, one hundred twenty-nine".