2774564146 has 4 divisors (see below), whose sum is σ = 4161846222. Its totient is φ = 1387282072.

The previous prime is 2774564137. The next prime is 2774564171. The reversal of 2774564146 is 6414654772.

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

It can be written as a sum of positive squares in only one way, i.e., 2611721025 + 162843121 = 51105^2 + 12761^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2774564096 and 2774564105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693641035 + ... + 693641038.

Almost surely, 2^2774564146 is an apocalyptic number.

2774564146 is a deficient number, since it is larger than the sum of its proper divisors (1387282076).

2774564146 is a wasteful number, since it uses less digits than its factorization.

2774564146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387282075.

The product of its digits is 1128960, while the sum is 46.

The square root of 2774564146 is about 52674.1316587184. The cubic root of 2774564146 is about 1405.1788032469.

The spelling of 2774564146 in words is "two billion, seven hundred seventy-four million, five hundred sixty-four thousand, one hundred forty-six".