166300131 has 4 divisors (see below), whose sum is σ = 221733512. Its totient is φ = 110866752.

The previous prime is 166300117. The next prime is 166300133. The reversal of 166300131 is 131003661.

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

It is not a de Polignac number, because 166300131 - 2¹⁵ = 166267363 is a prime.

It is a super-2 number, since 2×166300131² = 55311467141234322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166300098 and 166300107.

It is not an unprimeable number, because it can be changed into a prime (166300133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27716686 + ... + 27716691.

It is an arithmetic number, because the mean of its divisors is an integer number (55433378).

Almost surely, 2^166300131 is an apocalyptic number.

166300131 is a deficient number, since it is larger than the sum of its proper divisors (55433381).

166300131 is an equidigital number, since it uses as much as digits as its factorization.

166300131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55433380.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 166300131 is about 12895.7408084995. The cubic root of 166300131 is about 549.9174873463.

Adding to 166300131 its reverse (131003661), we get a palindrome (297303792).

The spelling of 166300131 in words is "one hundred sixty-six million, three hundred thousand, one hundred thirty-one".