133325532 has 18 divisors (see below), whose sum is σ = 337017408. Its totient is φ = 44441832.

The previous prime is 133325497. The next prime is 133325537. The reversal of 133325532 is 235523331.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 133325496 and 133325505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133325537) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1851708 + ... + 1851779.

Almost surely, 2^133325532 is an apocalyptic number.

133325532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133325532 is an abundant number, since it is smaller than the sum of its proper divisors (203691876).

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

133325532 is a wasteful number, since it uses less digits than its factorization.

133325532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3703497 (or 3703492 counting only the distinct ones).

The product of its digits is 8100, while the sum is 27.

The square root of 133325532 is about 11546.6675712086. The cubic root of 133325532 is about 510.8629910092.

Adding to 133325532 its reverse (235523331), we get a palindrome (368848863).

The spelling of 133325532 in words is "one hundred thirty-three million, three hundred twenty-five thousand, five hundred thirty-two".