2099144457 has 16 divisors (see below), whose sum is σ = 3111615360. Its totient is φ = 1398632400.

The previous prime is 2099144431. The next prime is 2099144461. The reversal of 2099144457 is 7544419902.

It is not a de Polignac number, because 2099144457 - 2¹⁹ = 2098620169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2099144407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28207 + ... + 70667.

It is an arithmetic number, because the mean of its divisors is an integer number (194475960).

Almost surely, 2^2099144457 is an apocalyptic number.

2099144457 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2099144457 is a deficient number, since it is larger than the sum of its proper divisors (1012470903).

2099144457 is a wasteful number, since it uses less digits than its factorization.

2099144457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44301 (or 44295 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2099144457 is about 45816.4212591948. The cubic root of 2099144457 is about 1280.4052381056.

It can be divided in two parts, 2099144 and 457, that added together give a square (2099601 = 1449²).

The spelling of 2099144457 in words is "two billion, ninety-nine million, one hundred forty-four thousand, four hundred fifty-seven".