148640 has 24 divisors (see below), whose sum is σ = 351540. Its totient is φ = 59392.

The previous prime is 148639. The next prime is 148663. The reversal of 148640 is 46841.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 126736 + 21904 = 356^2 + 148^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 148640.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305 + ... + 624.

2¹⁴⁸⁶⁴⁰ is an apocalyptic number.

148640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148640 is an abundant number, since it is smaller than the sum of its proper divisors (202900).

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

148640 is an equidigital number, since it uses as much as digits as its factorization.

148640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944 (or 936 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 148640 is about 385.5385843207. The cubic root of 148640 is about 52.9718611756.

The spelling of 148640 in words is "one hundred forty-eight thousand, six hundred forty".