133535725 has 6 divisors (see below), whose sum is σ = 165584330. Its totient is φ = 106828560.

The previous prime is 133535713. The next prime is 133535777. The reversal of 133535725 is 527535331.

It can be written as a sum of positive squares in 3 ways, for example, as 44063044 + 89472681 = 6638^2 + 9459^2 .

It is a de Polignac number, because none of the positive numbers 2^k-133535725 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2670690 + ... + 2670739.

Almost surely, 2^133535725 is an apocalyptic number.

It is an amenable number.

133535725 is a deficient number, since it is larger than the sum of its proper divisors (32048605).

133535725 is an equidigital number, since it uses as much as digits as its factorization.

133535725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5341439 (or 5341434 counting only the distinct ones).

The product of its digits is 47250, while the sum is 34.

The square root of 133535725 is about 11555.7658768253. The cubic root of 133535725 is about 511.1313153201.

The spelling of 133535725 in words is "one hundred thirty-three million, five hundred thirty-five thousand, seven hundred twenty-five".