49251143 has 2 divisors, whose sum is σ = 49251144. Its totient is φ = 49251142.

The previous prime is 49251133. The next prime is 49251161. The reversal of 49251143 is 34115294.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49251143 - 2¹² = 49247047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49251133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24625571 + 24625572.

It is an arithmetic number, because the mean of its divisors is an integer number (24625572).

Almost surely, 2^49251143 is an apocalyptic number.

49251143 is a deficient number, since it is larger than the sum of its proper divisors (1).

49251143 is an equidigital number, since it uses as much as digits as its factorization.

49251143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 49251143 is about 7017.9158587148. The cubic root of 49251143 is about 366.5546821473.

It can be divided in two parts, 49251 and 143, that added together give a palindrome (49394).

The spelling of 49251143 in words is "forty-nine million, two hundred fifty-one thousand, one hundred forty-three".