1315444144 has 20 divisors (see below), whose sum is σ = 2912769424. Its totient is φ = 563761728.

The previous prime is 1315444127. The next prime is 1315444183. The reversal of 1315444144 is 4414445131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5872407 + ... + 5872630.

Almost surely, 2^1315444144 is an apocalyptic number.

1315444144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1315444144 is an abundant number, since it is smaller than the sum of its proper divisors (1597325280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1315444144 is a wasteful number, since it uses less digits than its factorization.

1315444144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11745052 (or 11745046 counting only the distinct ones).

The product of its digits is 15360, while the sum is 31.

The square root of 1315444144 is about 36269.0521519380. The cubic root of 1315444144 is about 1095.6978361436.

Adding to 1315444144 its reverse (4414445131), we get a palindrome (5729889275).

The spelling of 1315444144 in words is "one billion, three hundred fifteen million, four hundred forty-four thousand, one hundred forty-four".