1351444144 has 10 divisors (see below), whose sum is σ = 2618423060. Its totient is φ = 675722064.

The previous prime is 1351444139. The next prime is 1351444177. The reversal of 1351444144 is 4414441531.

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 as a sum of consecutive naturals, namely, 42232614 + ... + 42232645.

It is an arithmetic number, because the mean of its divisors is an integer number (261842306).

Almost surely, 2^1351444144 is an apocalyptic number.

It is an amenable number.

1351444144 is a deficient number, since it is larger than the sum of its proper divisors (1266978916).

1351444144 is an equidigital number, since it uses as much as digits as its factorization.

1351444144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84465267 (or 84465261 counting only the distinct ones).

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

The square root of 1351444144 is about 36761.9931994989. The cubic root of 1351444144 is about 1105.6034033710.

Adding to 1351444144 its reverse (4414441531), we get a palindrome (5765885675).

The spelling of 1351444144 in words is "one billion, three hundred fifty-one million, four hundred forty-four thousand, one hundred forty-four".