1448137789 has 8 divisors (see below), whose sum is σ = 1693503680. Its totient is φ = 1212394176.

The previous prime is 1448137781. The next prime is 1448137807. The reversal of 1448137789 is 9877318441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1448137789 - 2³ = 1448137781 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 (1448137781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2405244 + ... + 2405845.

It is an arithmetic number, because the mean of its divisors is an integer number (211687960).

Almost surely, 2^1448137789 is an apocalyptic number.

It is an amenable number.

1448137789 is a deficient number, since it is larger than the sum of its proper divisors (245365891).

1448137789 is an equidigital number, since it uses as much as digits as its factorization.

1448137789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4811139.

The product of its digits is 1354752, while the sum is 52.

The square root of 1448137789 is about 38054.4056450761. The cubic root of 1448137789 is about 1131.3664491339.

The spelling of 1448137789 in words is "one billion, four hundred forty-eight million, one hundred thirty-seven thousand, seven hundred eighty-nine".