2765156 has 6 divisors (see below), whose sum is σ = 4839030. Its totient is φ = 1382576.

The previous prime is 2765143. The next prime is 2765173. The reversal of 2765156 is 6515672.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2592100 + 173056 = 1610^2 + 416^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345641 + ... + 345648.

It is an arithmetic number, because the mean of its divisors is an integer number (806505).

2^2765156 is an apocalyptic number.

It is an amenable number.

2765156 is a deficient number, since it is larger than the sum of its proper divisors (2073874).

2765156 is a wasteful number, since it uses less digits than its factorization.

2765156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691293 (or 691291 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 2765156 is about 1662.8758221828. The cubic root of 2765156 is about 140.3588751937.

The spelling of 2765156 in words is "two million, seven hundred sixty-five thousand, one hundred fifty-six".