133108357 has 4 divisors (see below), whose sum is σ = 140114080. Its totient is φ = 126102636.

The previous prime is 133108343. The next prime is 133108361. The reversal of 133108357 is 753801331.

It is a happy number.

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: 753801331 = 79 ⋅9541789.

It is a cyclic number.

It is not a de Polignac number, because 133108357 - 2⁷ = 133108229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133108757) 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, 3502833 + ... + 3502870.

It is an arithmetic number, because the mean of its divisors is an integer number (35028520).

Almost surely, 2^133108357 is an apocalyptic number.

It is an amenable number.

133108357 is a deficient number, since it is larger than the sum of its proper divisors (7005723).

133108357 is an equidigital number, since it uses as much as digits as its factorization.

133108357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7005722.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 133108357 is about 11537.2595099530. The cubic root of 133108357 is about 510.5854573575.

Adding to 133108357 its reverse (753801331), we get a palindrome (886909688).

The spelling of 133108357 in words is "one hundred thirty-three million, one hundred eight thousand, three hundred fifty-seven".