148193388 has 180 divisors, whose sum is σ = 469861392. Its totient is φ = 39890880.

The previous prime is 148193387. The next prime is 148193411. The reversal of 148193388 is 883391841.

148193388 is a `hidden beast` number, since 1 + 481 + 93 + 3 + 88 = 666.

It is a super-2 number, since 2×148193388² = 43922560493837088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (148193387) by changing a digit.

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 59 ways as a sum of consecutive naturals, for example, 818658 + ... + 818838.

Almost surely, 2^148193388 is an apocalyptic number.

148193388 is a gapful number since it is divisible by the number (18) 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 148193388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234930696).

148193388 is an abundant number, since it is smaller than the sum of its proper divisors (321668004).

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

148193388 is a wasteful number, since it uses less digits than its factorization.

148193388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 212 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 148193388 is about 12173.4706637015. The cubic root of 148193388 is about 529.1875388492.

The spelling of 148193388 in words is "one hundred forty-eight million, one hundred ninety-three thousand, three hundred eighty-eight".