148183840 has 144 divisors (see below), whose sum is σ = 418078584. Its totient is φ = 49459200.

The previous prime is 148183837. The next prime is 148183859. The reversal of 148183840 is 48381841.

It can be written as a sum of positive squares in 4 ways, for example, as 66389904 + 81793936 = 8148^2 + 9044^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 148183840.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 321210 + ... + 321670.

Almost surely, 2^148183840 is an apocalyptic number.

148183840 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 148183840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209039292).

148183840 is an abundant number, since it is smaller than the sum of its proper divisors (269894744).

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

148183840 is a wasteful number, since it uses less digits than its factorization.

148183840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 148183840 is about 12173.0784931339. The cubic root of 148183840 is about 529.1761735398.

The spelling of 148183840 in words is "one hundred forty-eight million, one hundred eighty-three thousand, eight hundred forty".