48166981 has 2 divisors, whose sum is σ = 48166982. Its totient is φ = 48166980.

The previous prime is 48166927. The next prime is 48167029. The reversal of 48166981 is 18966184.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28718881 + 19448100 = 5359^2 + 4410^2 .

It is a cyclic number.

It is not a de Polignac number, because 48166981 - 2¹⁷ = 48035909 is a prime.

It is a super-2 number, since 2×48166981² = 4640116117308722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48166081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24083490 + 24083491.

It is an arithmetic number, because the mean of its divisors is an integer number (24083491).

Almost surely, 2^48166981 is an apocalyptic number.

It is an amenable number.

48166981 is a deficient number, since it is larger than the sum of its proper divisors (1).

48166981 is an equidigital number, since it uses as much as digits as its factorization.

48166981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 43.

The square root of 48166981 is about 6940.2435836215. The cubic root of 48166981 is about 363.8450539052.

The spelling of 48166981 in words is "forty-eight million, one hundred sixty-six thousand, nine hundred eighty-one".