146945664 has 80 divisors (see below), whose sum is σ = 437338770. Its totient is φ = 48978432.

The previous prime is 146945651. The next prime is 146945683. The reversal of 146945664 is 466549641.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 100160064 + 46785600 = 10008^2 + 6840^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3282 + ... + 17454.

Almost surely, 2^146945664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 146945664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218669385).

146945664 is an abundant number, since it is smaller than the sum of its proper divisors (290393106).

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

146945664 is an equidigital number, since it uses as much as digits as its factorization.

146945664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14199 (or 14178 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 146945664 is about 12122.1146670043. The cubic root of 146945664 is about 527.6981746051.

The spelling of 146945664 in words is "one hundred forty-six million, nine hundred forty-five thousand, six hundred sixty-four".