13148505 has 48 divisors (see below), whose sum is σ = 24008400. Its totient is φ = 6649344.

The previous prime is 13148491. The next prime is 13148507. The reversal of 13148505 is 50584131.

13148505 is a `hidden beast` number, since 13 + 148 + 505 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 36864 + 13111641 = 192^2 + 3621^2 .

It is not a de Polignac number, because 13148505 - 2⁶ = 13148441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13148507) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88171 + ... + 88319.

It is an arithmetic number, because the mean of its divisors is an integer number (500175).

Almost surely, 2^13148505 is an apocalyptic number.

13148505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13148505 is a deficient number, since it is larger than the sum of its proper divisors (10859895).

13148505 is a wasteful number, since it uses less digits than its factorization.

13148505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 13148505 is about 3626.0867336565. The cubic root of 13148505 is about 236.0254269740.

The spelling of 13148505 in words is "thirteen million, one hundred forty-eight thousand, five hundred five".