2772143 has 4 divisors (see below), whose sum is σ = 3024168. Its totient is φ = 2520120.

The previous prime is 2772137. The next prime is 2772179. The reversal of 2772143 is 3412772.

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

It is a cyclic number.

It is not a de Polignac number, because 2772143 - 2⁴ = 2772127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2772193) 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, 125996 + ... + 126017.

It is an arithmetic number, because the mean of its divisors is an integer number (756042).

2^2772143 is an apocalyptic number.

2772143 is a deficient number, since it is larger than the sum of its proper divisors (252025).

2772143 is a wasteful number, since it uses less digits than its factorization.

2772143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252024.

The product of its digits is 2352, while the sum is 26.

The square root of 2772143 is about 1664.9753751933. The cubic root of 2772143 is about 140.4769954273.

The spelling of 2772143 in words is "two million, seven hundred seventy-two thousand, one hundred forty-three".