49281161 has 2 divisors, whose sum is σ = 49281162. Its totient is φ = 49281160.

The previous prime is 49281091. The next prime is 49281173. The reversal of 49281161 is 16118294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47886400 + 1394761 = 6920^2 + 1181^2 .

It is a cyclic number.

It is not a de Polignac number, because 49281161 - 2¹⁰ = 49280137 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_2960429 and since 49281161 and 2960429 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (49281191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24640580 + 24640581.

It is an arithmetic number, because the mean of its divisors is an integer number (24640581).

Almost surely, 2^49281161 is an apocalyptic number.

It is an amenable number.

49281161 is a deficient number, since it is larger than the sum of its proper divisors (1).

49281161 is an equidigital number, since it uses as much as digits as its factorization.

49281161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 32.

The square root of 49281161 is about 7020.0542020700. The cubic root of 49281161 is about 366.6291372976.

The spelling of 49281161 in words is "forty-nine million, two hundred eighty-one thousand, one hundred sixty-one".