133525424 has 10 divisors (see below), whose sum is σ = 258705540. Its totient is φ = 66762704.

The previous prime is 133525409. The next prime is 133525453. The reversal of 133525424 is 424525331.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4172654 + ... + 4172685.

It is an arithmetic number, because the mean of its divisors is an integer number (25870554).

Almost surely, 2^133525424 is an apocalyptic number.

It is an amenable number.

133525424 is a deficient number, since it is larger than the sum of its proper divisors (125180116).

133525424 is an equidigital number, since it uses as much as digits as its factorization.

133525424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8345347 (or 8345341 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 133525424 is about 11555.3201599956. The cubic root of 133525424 is about 511.1181720232.

The spelling of 133525424 in words is "one hundred thirty-three million, five hundred twenty-five thousand, four hundred twenty-four".