148209988 has 12 divisors (see below), whose sum is σ = 264886272. Its totient is φ = 72528200.

The previous prime is 148209983. The next prime is 148209989. The reversal of 148209988 is 889902841.

It is not an unprimeable number, because it can be changed into a prime (148209983) 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, 393988 + ... + 394363.

It is an arithmetic number, because the mean of its divisors is an integer number (22073856).

Almost surely, 2^148209988 is an apocalyptic number.

It is an amenable number.

148209988 is a deficient number, since it is larger than the sum of its proper divisors (116676284).

148209988 is a wasteful number, since it uses less digits than its factorization.

148209988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788402 (or 788400 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 49.

The square root of 148209988 is about 12174.1524550993. The cubic root of 148209988 is about 529.2072972322.

The spelling of 148209988 in words is "one hundred forty-eight million, two hundred nine thousand, nine hundred eighty-eight".