146906521 has 8 divisors (see below), whose sum is σ = 148216640. Its totient is φ = 145601712.

The previous prime is 146906491. The next prime is 146906569. The reversal of 146906521 is 125609641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 146906521 - 2¹⁹ = 146382233 is a prime.

It is the 12121-st Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146906581) by changing a digit.

It is a nontrivial repunit in base 12120.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70531 + ... + 72583.

It is an arithmetic number, because the mean of its divisors is an integer number (18527080).

Almost surely, 2^146906521 is an apocalyptic number.

It is an amenable number.

146906521 is a deficient number, since it is larger than the sum of its proper divisors (1310119).

146906521 is a wasteful number, since it uses less digits than its factorization.

146906521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 146906521 is about 12120.5000309393. The cubic root of 146906521 is about 527.6513148262.

The spelling of 146906521 in words is "one hundred forty-six million, nine hundred six thousand, five hundred twenty-one".