146666540 has 12 divisors (see below), whose sum is σ = 307999776. Its totient is φ = 58666608.

The previous prime is 146666539. The next prime is 146666587. The reversal of 146666540 is 45666641.

It is a super-2 number, since 2×146666540² = 43022147911143200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 146666494 and 146666503.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3666644 + ... + 3666683.

It is an arithmetic number, because the mean of its divisors is an integer number (25666648).

Almost surely, 2^146666540 is an apocalyptic number.

146666540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146666540 is an abundant number, since it is smaller than the sum of its proper divisors (161333236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

146666540 is a wasteful number, since it uses less digits than its factorization.

146666540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7333336 (or 7333334 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 146666540 is about 12110.5961868110. The cubic root of 146666540 is about 527.3638410807.

The spelling of 146666540 in words is "one hundred forty-six million, six hundred sixty-six thousand, five hundred forty".