146645520 has 160 divisors (see below), whose sum is σ = 532465920. Its totient is φ = 32686080.

The previous prime is 146645507. The next prime is 146645537. The reversal of 146645520 is 25546641.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67816 + ... + 69944.

It is an arithmetic number, because the mean of its divisors is an integer number (3327912).

Almost surely, 2^146645520 is an apocalyptic number.

146645520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 146645520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266232960).

146645520 is an abundant number, since it is smaller than the sum of its proper divisors (385820400).

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

146645520 is a wasteful number, since it uses less digits than its factorization.

146645520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193 (or 2187 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 146645520 is about 12109.7283206520. The cubic root of 146645520 is about 527.3386462464.

The spelling of 146645520 in words is "one hundred forty-six million, six hundred forty-five thousand, five hundred twenty".