133920567 has 32 divisors (see below), whose sum is σ = 217451520. Its totient is φ = 80784000.

The previous prime is 133920557. The next prime is 133920587. The reversal of 133920567 is 765029331.

133920567 is a `hidden beast` number, since 1 + 3 + 3 + 92 + 0 + 567 = 666.

It is not a de Polignac number, because 133920567 - 2⁷ = 133920439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133920517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70642 + ... + 72512.

It is an arithmetic number, because the mean of its divisors is an integer number (6795360).

Almost surely, 2^133920567 is an apocalyptic number.

133920567 is a deficient number, since it is larger than the sum of its proper divisors (83530953).

133920567 is a wasteful number, since it uses less digits than its factorization.

133920567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132 (or 2126 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 133920567 is about 11572.4054111494. The cubic root of 133920567 is about 511.6218610418.

Adding to 133920567 its reverse (765029331), we get a palindrome (898949898).

The spelling of 133920567 in words is "one hundred thirty-three million, nine hundred twenty thousand, five hundred sixty-seven".