2144292109 has 4 divisors (see below), whose sum is σ = 2153656060. Its totient is φ = 2134928160.

The previous prime is 2144292097. The next prime is 2144292113. The reversal of 2144292109 is 9012924412.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2104790884 + 39501225 = 45878^2 + 6285^2 .

It is a cyclic number.

It is not a de Polignac number, because 2144292109 - 2¹¹ = 2144290061 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 (2144292119) 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, 4681632 + ... + 4682089.

It is an arithmetic number, because the mean of its divisors is an integer number (538414015).

Almost surely, 2^2144292109 is an apocalyptic number.

It is an amenable number.

2144292109 is a deficient number, since it is larger than the sum of its proper divisors (9363951).

2144292109 is an equidigital number, since it uses as much as digits as its factorization.

2144292109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9363950.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 2144292109 is about 46306.5018005031. The cubic root of 2144292109 is about 1289.5197036158.

The spelling of 2144292109 in words is "two billion, one hundred forty-four million, two hundred ninety-two thousand, one hundred nine".