1319456144 has 10 divisors (see below), whose sum is σ = 2556446310. Its totient is φ = 659728064.

The previous prime is 1319456113. The next prime is 1319456233. The reversal of 1319456144 is 4416549131.

It can be written as a sum of positive squares in only one way, i.e., 862009600 + 457446544 = 29360^2 + 21388^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1319456098 and 1319456107.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41232989 + ... + 41233020.

It is an arithmetic number, because the mean of its divisors is an integer number (255644631).

Almost surely, 2^1319456144 is an apocalyptic number.

It is an amenable number.

1319456144 is a deficient number, since it is larger than the sum of its proper divisors (1236990166).

1319456144 is an equidigital number, since it uses as much as digits as its factorization.

1319456144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82466017 (or 82466011 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 1319456144 is about 36324.3189062094. The cubic root of 1319456144 is about 1096.8106360059.

The spelling of 1319456144 in words is "one billion, three hundred nineteen million, four hundred fifty-six thousand, one hundred forty-four".