166147301 has 2 divisors, whose sum is σ = 166147302. Its totient is φ = 166147300.

The previous prime is 166147277. The next prime is 166147391. The reversal of 166147301 is 103741661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163584100 + 2563201 = 12790^2 + 1601^2 .

It is a cyclic number.

It is not a de Polignac number, because 166147301 - 2¹⁸ = 165885157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166147391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83073650 + 83073651.

It is an arithmetic number, because the mean of its divisors is an integer number (83073651).

Almost surely, 2^166147301 is an apocalyptic number.

166147301 is the 5765-th centered decagonal number.

It is an amenable number.

166147301 is a deficient number, since it is larger than the sum of its proper divisors (1).

166147301 is an equidigital number, since it uses as much as digits as its factorization.

166147301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 166147301 is about 12889.8138466000. The cubic root of 166147301 is about 549.7489774606.

Adding to 166147301 its reverse (103741661), we get a palindrome (269888962).

The spelling of 166147301 in words is "one hundred sixty-six million, one hundred forty-seven thousand, three hundred one".