135248172 has 48 divisors (see below), whose sum is σ = 325328640. Its totient is φ = 43699392.

The previous prime is 135248171. The next prime is 135248173. The reversal of 135248172 is 271842531.

It is an interprime number because it is at equal distance from previous prime (135248171) and next prime (135248173).

It is not an unprimeable number, because it can be changed into a prime (135248171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185673 + ... + 186399.

It is an arithmetic number, because the mean of its divisors is an integer number (6777680).

Almost surely, 2^135248172 is an apocalyptic number.

135248172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135248172 is an abundant number, since it is smaller than the sum of its proper divisors (190080468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135248172 is a wasteful number, since it uses less digits than its factorization.

135248172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190 (or 1188 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 135248172 is about 11629.6247574890. The cubic root of 135248172 is about 513.3069383553.

The spelling of 135248172 in words is "one hundred thirty-five million, two hundred forty-eight thousand, one hundred seventy-two".