49188143 has 4 divisors (see below), whose sum is σ = 49994568. Its totient is φ = 48381720.

The previous prime is 49188137. The next prime is 49188193. The reversal of 49188143 is 34188194.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34188194 = 2 ⋅17094097.

It is a cyclic number.

It is not a de Polignac number, because 49188143 - 2¹⁰ = 49187119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49188097 and 49188106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49188193) 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, 403121 + ... + 403242.

It is an arithmetic number, because the mean of its divisors is an integer number (12498642).

Almost surely, 2^49188143 is an apocalyptic number.

49188143 is a deficient number, since it is larger than the sum of its proper divisors (806425).

49188143 is an equidigital number, since it uses as much as digits as its factorization.

49188143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806424.

The product of its digits is 27648, while the sum is 38.

The square root of 49188143 is about 7013.4259103522. The cubic root of 49188143 is about 366.3983216578.

The spelling of 49188143 in words is "forty-nine million, one hundred eighty-eight thousand, one hundred forty-three".