48191189 has 4 divisors (see below), whose sum is σ = 48633420. Its totient is φ = 47748960.

The previous prime is 48191177. The next prime is 48191203. The reversal of 48191189 is 98119184.

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 42706225 + 5484964 = 6535^2 + 2342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48191189 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 (48191119) 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, 220952 + ... + 221169.

It is an arithmetic number, because the mean of its divisors is an integer number (12158355).

Almost surely, 2^48191189 is an apocalyptic number.

It is an amenable number.

48191189 is a deficient number, since it is larger than the sum of its proper divisors (442231).

48191189 is a wasteful number, since it uses less digits than its factorization.

48191189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442230.

The product of its digits is 20736, while the sum is 41.

The square root of 48191189 is about 6941.9873955518. The cubic root of 48191189 is about 363.9059980465.

The spelling of 48191189 in words is "forty-eight million, one hundred ninety-one thousand, one hundred eighty-nine".