148730189 has 4 divisors (see below), whose sum is σ = 149156700. Its totient is φ = 148303680.

The previous prime is 148730147. The next prime is 148730201. The reversal of 148730189 is 981037841.

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

It can be written as a sum of positive squares in 2 ways, for example, as 74684164 + 74046025 = 8642^2 + 8605^2 .

It is a cyclic number.

It is not a de Polignac number, because 148730189 - 2¹⁶ = 148664653 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 (148730129) 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, 212732 + ... + 213429.

It is an arithmetic number, because the mean of its divisors is an integer number (37289175).

Almost surely, 2^148730189 is an apocalyptic number.

It is an amenable number.

148730189 is a deficient number, since it is larger than the sum of its proper divisors (426511).

148730189 is an equidigital number, since it uses as much as digits as its factorization.

148730189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426510.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 148730189 is about 12195.4987187897. The cubic root of 148730189 is about 529.8257276797.

The spelling of 148730189 in words is "one hundred forty-eight million, seven hundred thirty thousand, one hundred eighty-nine".