1401143135 has 8 divisors (see below), whose sum is σ = 1921567776. Its totient is φ = 960783840.

The previous prime is 1401143129. The next prime is 1401143171. The reversal of 1401143135 is 5313411041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1401143135 - 2¹² = 1401139039 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1401143135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20016296 + ... + 20016365.

It is an arithmetic number, because the mean of its divisors is an integer number (240195972).

Almost surely, 2^1401143135 is an apocalyptic number.

1401143135 is a deficient number, since it is larger than the sum of its proper divisors (520424641).

1401143135 is an equidigital number, since it uses as much as digits as its factorization.

1401143135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40032673.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1401143135 is about 37431.8465347356. The cubic root of 1401143135 is about 1118.9933384102.

Adding to 1401143135 its reverse (5313411041), we get a palindrome (6714554176).

The spelling of 1401143135 in words is "one billion, four hundred one million, one hundred forty-three thousand, one hundred thirty-five".