148928985 has 24 divisors (see below), whose sum is σ = 258625224. Its totient is φ = 79280640.

The previous prime is 148928977. The next prime is 148928987. The reversal of 148928985 is 589829841.

148928985 = 175² + 176² + ... + 767².

148928985 is a `hidden beast` number, since 1 + 489 + 2 + 89 + 85 = 666.

148928985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11758041 + 137170944 = 3429^2 + 11712^2 .

It is not a de Polignac number, because 148928985 - 2³ = 148928977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148928987) 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, 23895 + ... + 29475.

It is an arithmetic number, because the mean of its divisors is an integer number (10776051).

Almost surely, 2^148928985 is an apocalyptic number.

148928985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

148928985 is a deficient number, since it is larger than the sum of its proper divisors (109696239).

148928985 is a wasteful number, since it uses less digits than its factorization.

148928985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6185 (or 6182 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 54.

The square root of 148928985 is about 12203.6463813075. The cubic root of 148928985 is about 530.0616814411.

The spelling of 148928985 in words is "one hundred forty-eight million, nine hundred twenty-eight thousand, nine hundred eighty-five".