133682557 has 4 divisors (see below), whose sum is σ = 133711840. Its totient is φ = 133653276.

The previous prime is 133682519. The next prime is 133682561. The reversal of 133682557 is 755286331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 755286331 = 103 ⋅7332877.

It is a cyclic number.

It is not a de Polignac number, because 133682557 - 2¹¹ = 133680509 is a prime.

It is a super-3 number, since 3×133682557³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133682597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6153 + ... + 17470.

It is an arithmetic number, because the mean of its divisors is an integer number (33427960).

Almost surely, 2^133682557 is an apocalyptic number.

It is an amenable number.

133682557 is a deficient number, since it is larger than the sum of its proper divisors (29283).

133682557 is an equidigital number, since it uses as much as digits as its factorization.

133682557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29282.

The product of its digits is 151200, while the sum is 40.

The square root of 133682557 is about 11562.1173233971. The cubic root of 133682557 is about 511.3185884071.

The spelling of 133682557 in words is "one hundred thirty-three million, six hundred eighty-two thousand, five hundred fifty-seven".