133354257 has 16 divisors (see below), whose sum is σ = 179400000. Its totient is φ = 88110144.

The previous prime is 133354231. The next prime is 133354261. The reversal of 133354257 is 752453331.

It is not a de Polignac number, because 133354257 - 2¹¹ = 133352209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133354297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266994 + ... + 267492.

It is an arithmetic number, because the mean of its divisors is an integer number (11212500).

Almost surely, 2^133354257 is an apocalyptic number.

It is an amenable number.

133354257 is a deficient number, since it is larger than the sum of its proper divisors (46045743).

133354257 is a wasteful number, since it uses less digits than its factorization.

133354257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120.

The product of its digits is 37800, while the sum is 33.

The square root of 133354257 is about 11547.9113695941. The cubic root of 133354257 is about 510.8996768698.

The spelling of 133354257 in words is "one hundred thirty-three million, three hundred fifty-four thousand, two hundred fifty-seven".