146661146 has 4 divisors (see below), whose sum is σ = 219991722. Its totient is φ = 73330572.

The previous prime is 146661139. The next prime is 146661167. The reversal of 146661146 is 641166641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 641166641 = 197 ⋅3254653.

It can be written as a sum of positive squares in only one way, i.e., 116532025 + 30129121 = 10795^2 + 5489^2 .

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, 36665285 + ... + 36665288.

Almost surely, 2^146661146 is an apocalyptic number.

146661146 is a deficient number, since it is larger than the sum of its proper divisors (73330576).

146661146 is an equidigital number, since it uses as much as digits as its factorization.

146661146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73330575.

The product of its digits is 20736, while the sum is 35.

The square root of 146661146 is about 12110.3734872216. The cubic root of 146661146 is about 527.3573759946.

The spelling of 146661146 in words is "one hundred forty-six million, six hundred sixty-one thousand, one hundred forty-six".