4155520143 has 8 divisors (see below), whose sum is σ = 5549915056. Its totient is φ = 2765736000.

The previous prime is 4155520121. The next prime is 4155520169. The reversal of 4155520143 is 3410255514.

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

It is not a de Polignac number, because 4155520143 - 2⁶ = 4155520079 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 4155520143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4155520843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1150588 + ... + 1154193.

It is an arithmetic number, because the mean of its divisors is an integer number (693739382).

Almost surely, 2^4155520143 is an apocalyptic number.

4155520143 is a deficient number, since it is larger than the sum of its proper divisors (1394394913).

4155520143 is a wasteful number, since it uses less digits than its factorization.

4155520143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305385.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 4155520143 is about 64463.3240145123. The cubic root of 4155520143 is about 1607.7127795239.

Adding to 4155520143 its reverse (3410255514), we get a palindrome (7565775657).

The spelling of 4155520143 in words is "four billion, one hundred fifty-five million, five hundred twenty thousand, one hundred forty-three".