49719143 has 4 divisors (see below), whose sum is σ = 52335960. Its totient is φ = 47102328.

The previous prime is 49719139. The next prime is 49719149. The reversal of 49719143 is 34191794.

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 49719143 - 2² = 49719139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49719097 and 49719106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49719149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1308380 + ... + 1308417.

It is an arithmetic number, because the mean of its divisors is an integer number (13083990).

Almost surely, 2^49719143 is an apocalyptic number.

49719143 is a deficient number, since it is larger than the sum of its proper divisors (2616817).

49719143 is a wasteful number, since it uses less digits than its factorization.

49719143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2616816.

The product of its digits is 27216, while the sum is 38.

The square root of 49719143 is about 7051.1802558153. The cubic root of 49719143 is about 367.7120635784.

The spelling of 49719143 in words is "forty-nine million, seven hundred nineteen thousand, one hundred forty-three".