305152066 has 4 divisors (see below), whose sum is σ = 457728102. Its totient is φ = 152576032.

The previous prime is 305152051. The next prime is 305152069. The reversal of 305152066 is 660251503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 660251503 = 607 ⋅1087729.

It can be written as a sum of positive squares in only one way, i.e., 271755225 + 33396841 = 16485^2 + 5779^2 .

It is not an unprimeable number, because it can be changed into a prime (305152069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76288015 + ... + 76288018.

Almost surely, 2^305152066 is an apocalyptic number.

305152066 is a deficient number, since it is larger than the sum of its proper divisors (152576036).

305152066 is a wasteful number, since it uses less digits than its factorization.

305152066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152576035.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 305152066 is about 17468.6022909676. The cubic root of 305152066 is about 673.2434004538.

The spelling of 305152066 in words is "three hundred five million, one hundred fifty-two thousand, sixty-six".