1383012144 has 70 divisors (see below), whose sum is σ = 4017575076. Its totient is φ = 461000160.

The previous prime is 1383012143. The next prime is 1383012161. The reversal of 1383012144 is 4412103831.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1383012143) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 47622 + ... + 70949.

Almost surely, 2^1383012144 is an apocalyptic number.

It is an amenable number.

1383012144 is an abundant number, since it is smaller than the sum of its proper divisors (2634562932).

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

1383012144 is an equidigital number, since it uses as much as digits as its factorization.

1383012144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118597 (or 118576 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1383012144 is about 37188.8712385843. The cubic root of 1383012144 is about 1114.1457240872.

Adding to 1383012144 its reverse (4412103831), we get a palindrome (5795115975).

The spelling of 1383012144 in words is "one billion, three hundred eighty-three million, twelve thousand, one hundred forty-four".