166131302 has 4 divisors (see below), whose sum is σ = 249196956. Its totient is φ = 83065650.

The previous prime is 166131299. The next prime is 166131311. The reversal of 166131302 is 203131661.

It is a happy number.

166131302 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 203131661 = 10151 ⋅20011.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 41532824 + ... + 41532827.

It is an arithmetic number, because the mean of its divisors is an integer number (62299239).

Almost surely, 2^166131302 is an apocalyptic number.

166131302 is a deficient number, since it is larger than the sum of its proper divisors (83065654).

166131302 is an equidigital number, since it uses as much as digits as its factorization.

166131302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83065653.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 166131302 is about 12889.1932253342. The cubic root of 166131302 is about 549.7313310385.

Adding to 166131302 its reverse (203131661), we get a palindrome (369262963).

The spelling of 166131302 in words is "one hundred sixty-six million, one hundred thirty-one thousand, three hundred two".