49845149 has 2 divisors, whose sum is σ = 49845150. Its totient is φ = 49845148.

The previous prime is 49845143. The next prime is 49845157. The reversal of 49845149 is 94154894.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26853124 + 22992025 = 5182^2 + 4795^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49845149 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49845143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24922574 + 24922575.

It is an arithmetic number, because the mean of its divisors is an integer number (24922575).

Almost surely, 2^49845149 is an apocalyptic number.

It is an amenable number.

49845149 is a deficient number, since it is larger than the sum of its proper divisors (1).

49845149 is an equidigital number, since it uses as much as digits as its factorization.

49845149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 44.

The square root of 49845149 is about 7060.1097016973. The cubic root of 49845149 is about 368.0224392626.

It can be divided in two parts, 49845 and 149, that added together give a palindrome (49994).

The spelling of 49845149 in words is "forty-nine million, eight hundred forty-five thousand, one hundred forty-nine".