48135881 has 2 divisors, whose sum is σ = 48135882. Its totient is φ = 48135880.

The previous prime is 48135869. The next prime is 48135883. The reversal of 48135881 is 18853184.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36711481 + 11424400 = 6059^2 + 3380^2 .

It is a cyclic number.

It is not a de Polignac number, because 48135881 - 2¹⁰ = 48134857 is a prime.

It is a super-2 number, since 2×48135881² = 4634126079292322, which contains 22 as substring.

Together with 48135883, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_2895806 and since 48135881 and 2895806 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 (48135883) 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, 24067940 + 24067941.

It is an arithmetic number, because the mean of its divisors is an integer number (24067941).

Almost surely, 2^48135881 is an apocalyptic number.

It is an amenable number.

48135881 is a deficient number, since it is larger than the sum of its proper divisors (1).

48135881 is an equidigital number, since it uses as much as digits as its factorization.

48135881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30720, while the sum is 38.

The square root of 48135881 is about 6938.0026664740. The cubic root of 48135881 is about 363.7667290362.

The spelling of 48135881 in words is "forty-eight million, one hundred thirty-five thousand, eight hundred eighty-one".