48786181 has 2 divisors, whose sum is σ = 48786182. Its totient is φ = 48786180.

The previous prime is 48786169. The next prime is 48786203. The reversal of 48786181 is 18168784.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34117281 + 14668900 = 5841^2 + 3830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48786181 is a prime.

It is a super-2 number, since 2×48786181² = 4760182913129522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48786581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24393090 + 24393091.

It is an arithmetic number, because the mean of its divisors is an integer number (24393091).

Almost surely, 2^48786181 is an apocalyptic number.

It is an amenable number.

48786181 is a deficient number, since it is larger than the sum of its proper divisors (1).

48786181 is an equidigital number, since it uses as much as digits as its factorization.

48786181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86016, while the sum is 43.

The square root of 48786181 is about 6984.7105165497. The cubic root of 48786181 is about 365.3975302284.

It can be divided in two parts, 487 and 86181, that added together give a palindrome (86668).

The spelling of 48786181 in words is "forty-eight million, seven hundred eighty-six thousand, one hundred eighty-one".