49644149 has 2 divisors, whose sum is σ = 49644150. Its totient is φ = 49644148.

The previous prime is 49644109. The next prime is 49644151. The reversal of 49644149 is 94144694.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42120100 + 7524049 = 6490^2 + 2743^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49644149 is a prime.

Together with 49644151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49644109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24822074 + 24822075.

It is an arithmetic number, because the mean of its divisors is an integer number (24822075).

Almost surely, 2^49644149 is an apocalyptic number.

It is an amenable number.

49644149 is a deficient number, since it is larger than the sum of its proper divisors (1).

49644149 is an equidigital number, since it uses as much as digits as its factorization.

49644149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 41.

The square root of 49644149 is about 7045.8604158754. The cubic root of 49644149 is about 367.5270907266.

The spelling of 49644149 in words is "forty-nine million, six hundred forty-four thousand, one hundred forty-nine".