48742181 has 4 divisors (see below), whose sum is σ = 48756972. Its totient is φ = 48727392.

The previous prime is 48742171. The next prime is 48742189. The reversal of 48742181 is 18124784.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 33988900 + 14753281 = 5830^2 + 3841^2 .

It is a cyclic number.

It is not a de Polignac number, because 48742181 - 2¹⁰ = 48741157 is a prime.

It is a super-2 number, since 2×48742181² = 4751600417273522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48742189) 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 in 3 ways as a sum of consecutive naturals, for example, 41 + ... + 9873.

It is an arithmetic number, because the mean of its divisors is an integer number (12189243).

Almost surely, 2^48742181 is an apocalyptic number.

It is an amenable number.

48742181 is a deficient number, since it is larger than the sum of its proper divisors (14791).

48742181 is an equidigital number, since it uses as much as digits as its factorization.

48742181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14790.

The product of its digits is 14336, while the sum is 35.

The square root of 48742181 is about 6981.5600692109. The cubic root of 48742181 is about 365.2876471506.

The spelling of 48742181 in words is "forty-eight million, seven hundred forty-two thousand, one hundred eighty-one".