47101949 has 2 divisors, whose sum is σ = 47101950. Its totient is φ = 47101948.

The previous prime is 47101913. The next prime is 47101961. The reversal of 47101949 is 94910174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45091225 + 2010724 = 6715^2 + 1418^2 .

It is a cyclic number.

It is not a de Polignac number, because 47101949 - 2⁸ = 47101693 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47101909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23550974 + 23550975.

It is an arithmetic number, because the mean of its divisors is an integer number (23550975).

Almost surely, 2^47101949 is an apocalyptic number.

It is an amenable number.

47101949 is a deficient number, since it is larger than the sum of its proper divisors (1).

47101949 is an equidigital number, since it uses as much as digits as its factorization.

47101949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 47101949 is about 6863.0859676970. The cubic root of 47101949 is about 361.1433530572.

The spelling of 47101949 in words is "forty-seven million, one hundred one thousand, nine hundred forty-nine".