48181139 has 2 divisors, whose sum is σ = 48181140. Its totient is φ = 48181138.

The previous prime is 48181127. The next prime is 48181171. The reversal of 48181139 is 93118184.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48181139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 48181099 and 48181108.

It is not a weakly prime, because it can be changed into another prime (48181039) 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, 24090569 + 24090570.

It is an arithmetic number, because the mean of its divisors is an integer number (24090570).

Almost surely, 2^48181139 is an apocalyptic number.

48181139 is a deficient number, since it is larger than the sum of its proper divisors (1).

48181139 is an equidigital number, since it uses as much as digits as its factorization.

48181139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 35.

The square root of 48181139 is about 6941.2635016977. The cubic root of 48181139 is about 363.8806994417.

The spelling of 48181139 in words is "forty-eight million, one hundred eighty-one thousand, one hundred thirty-nine".