47080181 has 2 divisors, whose sum is σ = 47080182. Its totient is φ = 47080180.

The previous prime is 47080153. The next prime is 47080193. The reversal of 47080181 is 18108074.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46799281 + 280900 = 6841^2 + 530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47080181 is a prime.

It is a super-2 number, since 2×47080181² = 4433086885985522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47080381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23540090 + 23540091.

It is an arithmetic number, because the mean of its divisors is an integer number (23540091).

Almost surely, 2^47080181 is an apocalyptic number.

It is an amenable number.

47080181 is a deficient number, since it is larger than the sum of its proper divisors (1).

47080181 is an equidigital number, since it uses as much as digits as its factorization.

47080181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 47080181 is about 6861.4999089120. The cubic root of 47080181 is about 361.0877107747.

The spelling of 47080181 in words is "forty-seven million, eighty thousand, one hundred eighty-one".