146545021 has 8 divisors (see below), whose sum is σ = 168406784. Its totient is φ = 124914960.

The previous prime is 146545019. The next prime is 146545037. The reversal of 146545021 is 120545641.

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 146545021 - 2¹ = 146545019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146545051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56565 + ... + 59098.

It is an arithmetic number, because the mean of its divisors is an integer number (21050848).

Almost surely, 2^146545021 is an apocalyptic number.

It is an amenable number.

146545021 is a deficient number, since it is larger than the sum of its proper divisors (21861763).

146545021 is a wasteful number, since it uses less digits than its factorization.

146545021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115851.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 146545021 is about 12105.5780944158. The cubic root of 146545021 is about 527.2181536057.

The spelling of 146545021 in words is "one hundred forty-six million, five hundred forty-five thousand, twenty-one".