148818989 has 12 divisors (see below), whose sum is σ = 164515680. Its totient is φ = 134514600.

The previous prime is 148818979. The next prime is 148818997. The reversal of 148818989 is 989818841.

It is not a de Polignac number, because 148818989 - 2⁴ = 148818973 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 (148818919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18224 + ... + 25094.

It is an arithmetic number, because the mean of its divisors is an integer number (13709640).

Almost surely, 2^148818989 is an apocalyptic number.

It is an amenable number.

148818989 is a deficient number, since it is larger than the sum of its proper divisors (15696691).

148818989 is a wasteful number, since it uses less digits than its factorization.

148818989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7072 (or 7061 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 56.

The square root of 148818989 is about 12199.1388630509. The cubic root of 148818989 is about 529.9311516122.

The spelling of 148818989 in words is "one hundred forty-eight million, eight hundred eighteen thousand, nine hundred eighty-nine".