49281187 has 2 divisors, whose sum is σ = 49281188. Its totient is φ = 49281186.

The previous prime is 49281173. The next prime is 49281191. The reversal of 49281187 is 78118294.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49281187 is a prime.

It is not a weakly prime, because it can be changed into another prime (49281587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24640593 + 24640594.

It is an arithmetic number, because the mean of its divisors is an integer number (24640594).

Almost surely, 2^49281187 is an apocalyptic number.

49281187 is a deficient number, since it is larger than the sum of its proper divisors (1).

49281187 is an equidigital number, since it uses as much as digits as its factorization.

49281187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 40.

The square root of 49281187 is about 7020.0560539073. The cubic root of 49281187 is about 366.6292017735.

The spelling of 49281187 in words is "forty-nine million, two hundred eighty-one thousand, one hundred eighty-seven".