1001412144 has 120 divisors (see below), whose sum is σ = 2860745472. Its totient is φ = 326954880.

The previous prime is 1001412143. The next prime is 1001412227. The reversal of 1001412144 is 4412141001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1001412143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1586709 + ... + 1587339.

Almost surely, 2^1001412144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1001412144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1430372736).

1001412144 is an abundant number, since it is smaller than the sum of its proper divisors (1859333328).

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

1001412144 is a wasteful number, since it uses less digits than its factorization.

1001412144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1001412144 is about 31645.0966817926. The cubic root of 1001412144 is about 1000.4704932680.

Adding to 1001412144 its reverse (4412141001), we get a palindrome (5413553145).

The spelling of 1001412144 in words is "one billion, one million, four hundred twelve thousand, one hundred forty-four".