148803987 has 4 divisors (see below), whose sum is σ = 198405320. Its totient is φ = 99202656.

The previous prime is 148803983. The next prime is 148803989. The reversal of 148803987 is 789308841.

148803987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 789308841 = 3 ⋅263102947.

It is not a de Polignac number, because 148803987 - 2² = 148803983 is a prime.

It is a super-3 number, since 3×148803987³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148803983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24800662 + ... + 24800667.

It is an arithmetic number, because the mean of its divisors is an integer number (49601330).

Almost surely, 2^148803987 is an apocalyptic number.

148803987 is a deficient number, since it is larger than the sum of its proper divisors (49601333).

148803987 is an equidigital number, since it uses as much as digits as its factorization.

148803987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49601332.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 148803987 is about 12198.5239680873. The cubic root of 148803987 is about 529.9133440856.

The spelling of 148803987 in words is "one hundred forty-eight million, eight hundred three thousand, nine hundred eighty-seven".