15155442143 has 4 divisors (see below), whose sum is σ = 15381642840. Its totient is φ = 14929241448.

The previous prime is 15155442109. The next prime is 15155442157. The reversal of 15155442143 is 34124455151.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15155442143 - 2¹⁸ = 15155179999 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 (15155442103) 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, 113100248 + ... + 113100381.

It is an arithmetic number, because the mean of its divisors is an integer number (3845410710).

Almost surely, 2^15155442143 is an apocalyptic number.

15155442143 is a deficient number, since it is larger than the sum of its proper divisors (226200697).

15155442143 is an equidigital number, since it uses as much as digits as its factorization.

15155442143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226200696.

The product of its digits is 48000, while the sum is 35.

Adding to 15155442143 its reverse (34124455151), we get a palindrome (49279897294).

The spelling of 15155442143 in words is "fifteen billion, one hundred fifty-five million, four hundred forty-two thousand, one hundred forty-three".