148191582 has 48 divisors (see below), whose sum is σ = 376123392. Its totient is φ = 38490480.

The previous prime is 148191577. The next prime is 148191607. The reversal of 148191582 is 285191841.

It is a self number, because there is not a number n which added to its sum of digits gives 148191582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19678 + ... + 26145.

It is an arithmetic number, because the mean of its divisors is an integer number (7835904).

Almost surely, 2^148191582 is an apocalyptic number.

148191582 is an abundant number, since it is smaller than the sum of its proper divisors (227931810).

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

148191582 is a wasteful number, since it uses less digits than its factorization.

148191582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45853 (or 45846 counting only the distinct ones).

The product of its digits is 23040, while the sum is 39.

The square root of 148191582 is about 12173.3964857800. The cubic root of 148191582 is about 529.1853891434.

The spelling of 148191582 in words is "one hundred forty-eight million, one hundred ninety-one thousand, five hundred eighty-two".