48173121 has 18 divisors (see below), whose sum is σ = 73921302. Its totient is φ = 30224640.

The previous prime is 48173107. The next prime is 48173123. The reversal of 48173121 is 12137184.

It can be written as a sum of positive squares in 3 ways, for example, as 36000000 + 12173121 = 6000^2 + 3489^2 .

It is not a de Polignac number, because 48173121 - 2¹⁵ = 48140353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48173123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6660 + ... + 11861.

It is an arithmetic number, because the mean of its divisors is an integer number (4106739).

Almost surely, 2^48173121 is an apocalyptic number.

It is an amenable number.

48173121 is a deficient number, since it is larger than the sum of its proper divisors (25748181).

48173121 is a wasteful number, since it uses less digits than its factorization.

48173121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18561 (or 18541 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 48173121 is about 6940.6859171122. The cubic root of 48173121 is about 363.8605134148.

The spelling of 48173121 in words is "forty-eight million, one hundred seventy-three thousand, one hundred twenty-one".