146666959 has 4 divisors (see below), whose sum is σ = 146701240. Its totient is φ = 146632680.

The previous prime is 146666951. The next prime is 146666969. The reversal of 146666959 is 959666641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 959666641 = 79 ⋅12147679.

It is a cyclic number.

It is not a de Polignac number, because 146666959 - 2³ = 146666951 is a prime.

It is a super-2 number, since 2×146666959² = 43022393724615362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146666951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9624 + ... + 19645.

It is an arithmetic number, because the mean of its divisors is an integer number (36675310).

Almost surely, 2^146666959 is an apocalyptic number.

146666959 is a deficient number, since it is larger than the sum of its proper divisors (34281).

146666959 is an equidigital number, since it uses as much as digits as its factorization.

146666959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34280.

The product of its digits is 2099520, while the sum is 52.

The square root of 146666959 is about 12110.6134856992. The cubic root of 146666959 is about 527.3643432749.

The spelling of 146666959 in words is "one hundred forty-six million, six hundred sixty-six thousand, nine hundred fifty-nine".