2144766149 has 4 divisors (see below), whose sum is σ = 2149359264. Its totient is φ = 2140173036.

The previous prime is 2144766133. The next prime is 2144766187. The reversal of 2144766149 is 9416674412.

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 not a de Polignac number, because 2144766149 - 2⁴ = 2144766133 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 (2144766109) 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, 2295857 + ... + 2296790.

It is an arithmetic number, because the mean of its divisors is an integer number (537339816).

Almost surely, 2^2144766149 is an apocalyptic number.

It is an amenable number.

2144766149 is a deficient number, since it is larger than the sum of its proper divisors (4593115).

2144766149 is an equidigital number, since it uses as much as digits as its factorization.

2144766149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4593114.

The product of its digits is 290304, while the sum is 44.

The square root of 2144766149 is about 46311.6200213294. The cubic root of 2144766149 is about 1289.6147215906.

The spelling of 2144766149 in words is "two billion, one hundred forty-four million, seven hundred sixty-six thousand, one hundred forty-nine".