148505887 has 4 divisors (see below), whose sum is σ = 149122336. Its totient is φ = 147889440.

The previous prime is 148505879. The next prime is 148505899. The reversal of 148505887 is 788505841.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 148505887 - 2³ = 148505879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148505837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307863 + ... + 308344.

It is an arithmetic number, because the mean of its divisors is an integer number (37280584).

Almost surely, 2^148505887 is an apocalyptic number.

148505887 is a deficient number, since it is larger than the sum of its proper divisors (616449).

148505887 is an equidigital number, since it uses as much as digits as its factorization.

148505887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616448.

The product of its (nonzero) digits is 358400, while the sum is 46.

The square root of 148505887 is about 12186.2991510959. The cubic root of 148505887 is about 529.5592479036.

Subtracting from 148505887 its sum of digits (46), we obtain a palindrome (148505841).

The spelling of 148505887 in words is "one hundred forty-eight million, five hundred five thousand, eight hundred eighty-seven".