49445149 has 4 divisors (see below), whose sum is σ = 53248636. Its totient is φ = 45641664.

The previous prime is 49445119. The next prime is 49445153. The reversal of 49445149 is 94154494.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30173049 + 19272100 = 5493^2 + 4390^2 .

It is a cyclic number.

It is not a de Polignac number, because 49445149 - 2¹¹ = 49443101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49445119) 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, 1901724 + ... + 1901749.

It is an arithmetic number, because the mean of its divisors is an integer number (13312159).

Almost surely, 2^49445149 is an apocalyptic number.

It is an amenable number.

49445149 is a deficient number, since it is larger than the sum of its proper divisors (3803487).

49445149 is a wasteful number, since it uses less digits than its factorization.

49445149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3803486.

The product of its digits is 103680, while the sum is 40.

The square root of 49445149 is about 7031.7244684359. The cubic root of 49445149 is about 367.0353521172.

It can be divided in two parts, 49445 and 149, that added together give a palindrome (49594).

The spelling of 49445149 in words is "forty-nine million, four hundred forty-five thousand, one hundred forty-nine".