133652531 has 4 divisors (see below), whose sum is σ = 134614200. Its totient is φ = 132690864.

The previous prime is 133652527. The next prime is 133652539. The reversal of 133652531 is 135256331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133652531 - 2² = 133652527 is a prime.

It is a super-2 number, since 2×133652531² = 35725998085411922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133652494 and 133652503.

It is not an unprimeable number, because it can be changed into a prime (133652539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480626 + ... + 480903.

It is an arithmetic number, because the mean of its divisors is an integer number (33653550).

Almost surely, 2^133652531 is an apocalyptic number.

133652531 is a deficient number, since it is larger than the sum of its proper divisors (961669).

133652531 is an equidigital number, since it uses as much as digits as its factorization.

133652531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961668.

The product of its digits is 8100, while the sum is 29.

The square root of 133652531 is about 11560.8187858819. The cubic root of 133652531 is about 511.2803036778.

The spelling of 133652531 in words is "one hundred thirty-three million, six hundred fifty-two thousand, five hundred thirty-one".