1444854513 has 4 divisors (see below), whose sum is σ = 1926472688. Its totient is φ = 963236340.

The previous prime is 1444854469. The next prime is 1444854517. The reversal of 1444854513 is 3154584441.

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 not a de Polignac number, because 1444854513 - 2²² = 1440660209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1444854517) 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, 240809083 + ... + 240809088.

It is an arithmetic number, because the mean of its divisors is an integer number (481618172).

Almost surely, 2^1444854513 is an apocalyptic number.

It is an amenable number.

1444854513 is a deficient number, since it is larger than the sum of its proper divisors (481618175).

1444854513 is an equidigital number, since it uses as much as digits as its factorization.

1444854513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481618174.

The product of its digits is 153600, while the sum is 39.

The square root of 1444854513 is about 38011.2419291977. The cubic root of 1444854513 is about 1130.5107756920.

The spelling of 1444854513 in words is "one billion, four hundred forty-four million, eight hundred fifty-four thousand, five hundred thirteen".