1401143500 has 48 divisors (see below), whose sum is σ = 3087302400. Its totient is φ = 555475200.

The previous prime is 1401143483. The next prime is 1401143507. The reversal of 1401143500 is 53411041.

It is not an unprimeable number, because it can be changed into a prime (1401143507) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 44101 + ... + 68899.

It is an arithmetic number, because the mean of its divisors is an integer number (64318800).

Almost surely, 2^1401143500 is an apocalyptic number.

1401143500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1401143500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1543651200).

1401143500 is an abundant number, since it is smaller than the sum of its proper divisors (1686158900).

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

1401143500 is a wasteful number, since it uses less digits than its factorization.

1401143500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24931 (or 24919 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1401143500 is about 37431.8514102629. The cubic root of 1401143500 is about 1118.9934355767.

Adding to 1401143500 its reverse (53411041), we get a palindrome (1454554541).

The spelling of 1401143500 in words is "one billion, four hundred one million, one hundred forty-three thousand, five hundred".