148009185 has 24 divisors (see below), whose sum is σ = 265398120. Its totient is φ = 76215552.

The previous prime is 148009153. The next prime is 148009187. The reversal of 148009185 is 581900841.

It can be written as a sum of positive squares in 4 ways, for example, as 3721041 + 144288144 = 1929^2 + 12012^2 .

It is not a de Polignac number, because 148009185 - 2⁵ = 148009153 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (148009187) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55404 + ... + 58013.

It is an arithmetic number, because the mean of its divisors is an integer number (11058255).

Almost surely, 2^148009185 is an apocalyptic number.

148009185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

148009185 is a deficient number, since it is larger than the sum of its proper divisors (117388935).

148009185 is a wasteful number, since it uses less digits than its factorization.

148009185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113457 (or 113454 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 148009185 is about 12165.9025559142. The cubic root of 148009185 is about 528.9681895483.

The spelling of 148009185 in words is "one hundred forty-eight million, nine thousand, one hundred eighty-five".