135247152 has 20 divisors (see below), whose sum is σ = 349388600. Its totient is φ = 45082368.

The previous prime is 135247127. The next prime is 135247183. The reversal of 135247152 is 251742531.

It is a super-2 number, since 2×135247152² = 36583584248222208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1408777 + ... + 1408872.

It is an arithmetic number, because the mean of its divisors is an integer number (17469430).

Almost surely, 2^135247152 is an apocalyptic number.

135247152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135247152 is an abundant number, since it is smaller than the sum of its proper divisors (214141448).

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

135247152 is a wasteful number, since it uses less digits than its factorization.

135247152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817660 (or 2817654 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 135247152 is about 11629.5809038847. The cubic root of 135247152 is about 513.3056479512.

Adding to 135247152 its reverse (251742531), we get a palindrome (386989683).

The spelling of 135247152 in words is "one hundred thirty-five million, two hundred forty-seven thousand, one hundred fifty-two".