148011640 has 64 divisors (see below), whose sum is σ = 389914560. Its totient is φ = 49505280.

The previous prime is 148011637. The next prime is 148011671. The reversal of 148011640 is 46110841.

148011640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5034 + ... + 17926.

It is an arithmetic number, because the mean of its divisors is an integer number (6092415).

Almost surely, 2^148011640 is an apocalyptic number.

148011640 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 148011640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194957280).

148011640 is an abundant number, since it is smaller than the sum of its proper divisors (241902920).

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

148011640 is a wasteful number, since it uses less digits than its factorization.

148011640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12952 (or 12948 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 148011640 is about 12166.0034522435. The cubic root of 148011640 is about 528.9711141635.

The spelling of 148011640 in words is "one hundred forty-eight million, eleven thousand, six hundred forty".