48491181 has 6 divisors (see below), whose sum is σ = 70042830. Its totient is φ = 32327448.

The previous prime is 48491141. The next prime is 48491203. The reversal of 48491181 is 18119484.

It can be written as a sum of positive squares in only one way, i.e., 47734281 + 756900 = 6909^2 + 870^2 .

It is not a de Polignac number, because 48491181 - 2⁶ = 48491117 is a prime.

It is a super-2 number, since 2×48491181² = 4702789269549522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48491101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2693946 + ... + 2693963.

It is an arithmetic number, because the mean of its divisors is an integer number (11673805).

Almost surely, 2^48491181 is an apocalyptic number.

It is an amenable number.

48491181 is a deficient number, since it is larger than the sum of its proper divisors (21551649).

48491181 is a wasteful number, since it uses less digits than its factorization.

48491181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5387915 (or 5387912 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The square root of 48491181 is about 6963.5609425064. The cubic root of 48491181 is about 364.6595461796.

The spelling of 48491181 in words is "forty-eight million, four hundred ninety-one thousand, one hundred eighty-one".