47161277 has 2 divisors, whose sum is σ = 47161278. Its totient is φ = 47161276.

The previous prime is 47161271. The next prime is 47161307. The reversal of 47161277 is 77216174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47141956 + 19321 = 6866^2 + 139^2 .

It is a cyclic number.

It is not a de Polignac number, because 47161277 - 2¹⁸ = 46899133 is a prime.

It is equal to p_2840786 and since 47161277 and 2840786 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47161271) 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, 23580638 + 23580639.

It is an arithmetic number, because the mean of its divisors is an integer number (23580639).

Almost surely, 2^47161277 is an apocalyptic number.

It is an amenable number.

47161277 is a deficient number, since it is larger than the sum of its proper divisors (1).

47161277 is an equidigital number, since it uses as much as digits as its factorization.

47161277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16464, while the sum is 35.

The square root of 47161277 is about 6867.4068613997. The cubic root of 47161277 is about 361.2949173683.

The spelling of 47161277 in words is "forty-seven million, one hundred sixty-one thousand, two hundred seventy-seven".