133468257 has 24 divisors (see below), whose sum is σ = 196375104. Its totient is φ = 80568384.

The previous prime is 133468229. The next prime is 133468267. The reversal of 133468257 is 752864331.

It is not a de Polignac number, because 133468257 - 2⁷ = 133468129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (133468267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24388 + ... + 29354.

It is an arithmetic number, because the mean of its divisors is an integer number (8182296).

Almost surely, 2^133468257 is an apocalyptic number.

It is an amenable number.

133468257 is a deficient number, since it is larger than the sum of its proper divisors (62906847).

133468257 is a wasteful number, since it uses less digits than its factorization.

133468257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5049 (or 5036 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 133468257 is about 11552.8462726724. The cubic root of 133468257 is about 511.0452189666.

The spelling of 133468257 in words is "one hundred thirty-three million, four hundred sixty-eight thousand, two hundred fifty-seven".