47191101 has 12 divisors (see below), whose sum is σ = 65736672. Its totient is φ = 30056488.

The previous prime is 47191087. The next prime is 47191141. The reversal of 47191101 is 10119174.

It is not a de Polignac number, because 47191101 - 2¹⁸ = 46928957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47191141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56650 + ... + 57476.

It is an arithmetic number, because the mean of its divisors is an integer number (5478056).

Almost surely, 2^47191101 is an apocalyptic number.

It is an amenable number.

47191101 is a deficient number, since it is larger than the sum of its proper divisors (18545571).

47191101 is an frugal number, since it uses more digits than its factorization.

47191101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680 (or 853 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 24.

The square root of 47191101 is about 6869.5779346332. The cubic root of 47191101 is about 361.3710602673.

The spelling of 47191101 in words is "forty-seven million, one hundred ninety-one thousand, one hundred one".