146008521 has 32 divisors (see below), whose sum is σ = 233024000. Its totient is φ = 90057744.

The previous prime is 146008517. The next prime is 146008547. The reversal of 146008521 is 125800641.

146008521 is a `hidden beast` number, since 1 + 4 + 600 + 8 + 52 + 1 = 666.

It is not a de Polignac number, because 146008521 - 2² = 146008517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (146008561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18750 + ... + 25368.

It is an arithmetic number, because the mean of its divisors is an integer number (7282000).

Almost surely, 2^146008521 is an apocalyptic number.

It is an amenable number.

146008521 is a deficient number, since it is larger than the sum of its proper divisors (87015479).

146008521 is a wasteful number, since it uses less digits than its factorization.

146008521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6690 (or 6684 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 146008521 is about 12083.3985699388. The cubic root of 146008521 is about 526.5739865668.

The spelling of 146008521 in words is "one hundred forty-six million, eight thousand, five hundred twenty-one".