1442251136 has 16 divisors (see below), whose sum is σ = 2873234940. Its totient is φ = 721125504.

The previous prime is 1442251093. The next prime is 1442251147. The reversal of 1442251136 is 6311522441.

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 1442251099 and 1442251108.

It is a congruent number.

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, 5633666 + ... + 5633921.

Almost surely, 2^1442251136 is an apocalyptic number.

1442251136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1442251136 is a deficient number, since it is larger than the sum of its proper divisors (1430983804).

1442251136 is an equidigital number, since it uses as much as digits as its factorization.

1442251136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11267601 (or 11267589 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 1442251136 is about 37976.9816599476. The cubic root of 1442251136 is about 1129.8313727542.

Adding to 1442251136 its reverse (6311522441), we get a palindrome (7753773577).

The spelling of 1442251136 in words is "one billion, four hundred forty-two million, two hundred fifty-one thousand, one hundred thirty-six".