133261293 has 24 divisors (see below), whose sum is σ = 202053600. Its totient is φ = 77973280.

The previous prime is 133261277. The next prime is 133261313. The reversal of 133261293 is 392162331.

It is not a de Polignac number, because 133261293 - 2⁴ = 133261277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133261293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133261223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4198 + ... + 16856.

It is an arithmetic number, because the mean of its divisors is an integer number (8418900).

Almost surely, 2^133261293 is an apocalyptic number.

It is an amenable number.

133261293 is a deficient number, since it is larger than the sum of its proper divisors (68792307).

133261293 is a wasteful number, since it uses less digits than its factorization.

133261293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12713 (or 12702 counting only the distinct ones).

The product of its digits is 5832, while the sum is 30.

The square root of 133261293 is about 11543.8855243804. The cubic root of 133261293 is about 510.7809297083.

The spelling of 133261293 in words is "one hundred thirty-three million, two hundred sixty-one thousand, two hundred ninety-three".