133068537 has 24 divisors (see below), whose sum is σ = 232592256. Its totient is φ = 71565696.

The previous prime is 133068521. The next prime is 133068557. The reversal of 133068537 is 735860331.

It is not a de Polignac number, because 133068537 - 2⁴ = 133068521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133068557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61053 + ... + 63194.

It is an arithmetic number, because the mean of its divisors is an integer number (9691344).

Almost surely, 2^133068537 is an apocalyptic number.

133068537 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

133068537 is a deficient number, since it is larger than the sum of its proper divisors (99523719).

133068537 is a wasteful number, since it uses less digits than its factorization.

133068537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124277 (or 124274 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 133068537 is about 11535.5336677589. The cubic root of 133068537 is about 510.5345375877.

The spelling of 133068537 in words is "one hundred thirty-three million, sixty-eight thousand, five hundred thirty-seven".