133108657 has 8 divisors (see below), whose sum is σ = 153751392. Its totient is φ = 113889600.

The previous prime is 133108643. The next prime is 133108663. The reversal of 133108657 is 756801331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133108657 - 2¹⁵ = 133075889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133108687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355719 + ... + 356092.

It is an arithmetic number, because the mean of its divisors is an integer number (19218924).

Almost surely, 2^133108657 is an apocalyptic number.

133108657 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

133108657 is a deficient number, since it is larger than the sum of its proper divisors (20642735).

133108657 is a wasteful number, since it uses less digits than its factorization.

133108657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711839.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 133108657 is about 11537.2725113001. The cubic root of 133108657 is about 510.5858409435.

Adding to 133108657 its reverse (756801331), we get a palindrome (889909988).

The spelling of 133108657 in words is "one hundred thirty-three million, one hundred eight thousand, six hundred fifty-seven".