48191191 has 4 divisors (see below), whose sum is σ = 48216112. Its totient is φ = 48166272.

The previous prime is 48191177. The next prime is 48191203. The reversal of 48191191 is 19119184.

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

It is a cyclic number.

It is not a de Polignac number, because 48191191 - 2¹¹ = 48189143 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 (48191791) 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, 9291 + ... + 13516.

It is an arithmetic number, because the mean of its divisors is an integer number (12054028).

Almost surely, 2^48191191 is an apocalyptic number.

48191191 is a deficient number, since it is larger than the sum of its proper divisors (24921).

48191191 is a wasteful number, since it uses less digits than its factorization.

48191191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24920.

The product of its digits is 2592, while the sum is 34.

The square root of 48191191 is about 6941.9875396028. The cubic root of 48191191 is about 363.9060030807.

The spelling of 48191191 in words is "forty-eight million, one hundred ninety-one thousand, one hundred ninety-one".