148166281 has 4 divisors (see below), whose sum is σ = 148255492. Its totient is φ = 148077072.

The previous prime is 148166257. The next prime is 148166297. The reversal of 148166281 is 182661841.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29160000 + 119006281 = 5400^2 + 10909^2 .

It is a cyclic number.

It is not a de Polignac number, because 148166281 - 2¹³ = 148158089 is a prime.

It is a super-2 number, since 2×148166281² = 43906493650741922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 148166281.

It is not an unprimeable number, because it can be changed into a prime (148166881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42066 + ... + 45451.

It is an arithmetic number, because the mean of its divisors is an integer number (37063873).

Almost surely, 2^148166281 is an apocalyptic number.

It is an amenable number.

148166281 is a deficient number, since it is larger than the sum of its proper divisors (89211).

148166281 is an equidigital number, since it uses as much as digits as its factorization.

148166281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89210.

The product of its digits is 18432, while the sum is 37.

The square root of 148166281 is about 12172.3572491116. The cubic root of 148166281 is about 529.1552711898.

The spelling of 148166281 in words is "one hundred forty-eight million, one hundred sixty-six thousand, two hundred eighty-one".