65530146 has 32 divisors (see below), whose sum is σ = 144302400. Its totient is φ = 19673280.

The previous prime is 65530141. The next prime is 65530159. The reversal of 65530146 is 64103556.

It is not an unprimeable number, because it can be changed into a prime (65530141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2640 + ... + 11748.

It is an arithmetic number, because the mean of its divisors is an integer number (4509450).

Almost surely, 2^65530146 is an apocalyptic number.

65530146 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 65530146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72151200).

65530146 is an abundant number, since it is smaller than the sum of its proper divisors (78772254).

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

65530146 is a wasteful number, since it uses less digits than its factorization.

65530146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9234.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 65530146 is about 8095.0692399757. The cubic root of 65530146 is about 403.1627310877.

The spelling of 65530146 in words is "sixty-five million, five hundred thirty thousand, one hundred forty-six".