133242552 has 48 divisors (see below), whose sum is σ = 369266040. Its totient is φ = 43380288.

The previous prime is 133242539. The next prime is 133242569. The reversal of 133242552 is 255242331.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18423 + ... + 24614.

Almost surely, 2^133242552 is an apocalyptic number.

133242552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133242552 is an abundant number, since it is smaller than the sum of its proper divisors (236023488).

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

133242552 is a wasteful number, since it uses less digits than its factorization.

133242552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43092 (or 43085 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 133242552 is about 11543.0737674157. The cubic root of 133242552 is about 510.7569842851.

Adding to 133242552 its reverse (255242331), we get a palindrome (388484883).

It can be divided in two parts, 13324 and 2552, that added together give a square (15876 = 126²).

The spelling of 133242552 in words is "one hundred thirty-three million, two hundred forty-two thousand, five hundred fifty-two".