1401305143 has 16 divisors (see below), whose sum is σ = 1658583360. Its totient is φ = 1158393600.

The previous prime is 1401305137. The next prime is 1401305161. The reversal of 1401305143 is 3415031041.

It is not a de Polignac number, because 1401305143 - 2²¹ = 1399207991 is a prime.

It is a super-2 number, since 2×1401305143² = 3927312207596500898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401300143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203883 + ... + 210643.

It is an arithmetic number, because the mean of its divisors is an integer number (103661460).

Almost surely, 2^1401305143 is an apocalyptic number.

1401305143 is a deficient number, since it is larger than the sum of its proper divisors (257278217).

1401305143 is a wasteful number, since it uses less digits than its factorization.

1401305143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7818.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1401305143 is about 37434.0105118327. The cubic root of 1401305143 is about 1119.0364648359.

Adding to 1401305143 its reverse (3415031041), we get a palindrome (4816336184).

The spelling of 1401305143 in words is "one billion, four hundred one million, three hundred five thousand, one hundred forty-three".