15401343143 has 4 divisors (see below), whose sum is σ = 15402697248. Its totient is φ = 15399989040.

The previous prime is 15401343079. The next prime is 15401343149. The reversal of 15401343143 is 34134310451.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34134310451 = 17881 ⋅1908971.

It is a cyclic number.

It is not a de Polignac number, because 15401343143 - 2⁶ = 15401343079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15401343149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659846 + ... + 682787.

It is an arithmetic number, because the mean of its divisors is an integer number (3850674312).

Almost surely, 2^15401343143 is an apocalyptic number.

15401343143 is a deficient number, since it is larger than the sum of its proper divisors (1354105).

15401343143 is a wasteful number, since it uses less digits than its factorization.

15401343143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354104.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 15401343143 its reverse (34134310451), we get a palindrome (49535653594).

The spelling of 15401343143 in words is "fifteen billion, four hundred one million, three hundred forty-three thousand, one hundred forty-three".