147020306 has 4 divisors (see below), whose sum is σ = 220530462. Its totient is φ = 73510152.

The previous prime is 147020297. The next prime is 147020323. The reversal of 147020306 is 603020741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 603020741 = 887 ⋅679843.

It can be written as a sum of positive squares in only one way, i.e., 89397025 + 57623281 = 9455^2 + 7591^2 .

It is a super-2 number, since 2×147020306² = 43229940752667272, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36755075 + ... + 36755078.

Almost surely, 2^147020306 is an apocalyptic number.

147020306 is a deficient number, since it is larger than the sum of its proper divisors (73510156).

147020306 is an equidigital number, since it uses as much as digits as its factorization.

147020306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73510155.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 147020306 is about 12125.1930293913. The cubic root of 147020306 is about 527.7875087140.

The spelling of 147020306 in words is "one hundred forty-seven million, twenty thousand, three hundred six".