133121353 has 8 divisors (see below), whose sum is σ = 140254400. Its totient is φ = 126001008.

The previous prime is 133121341. The next prime is 133121357. The reversal of 133121353 is 353121331.

It is a happy number.

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

It is not a de Polignac number, because 133121353 - 2⁵ = 133121321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133121357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24700 + ... + 29602.

It is an arithmetic number, because the mean of its divisors is an integer number (17531800).

Almost surely, 2^133121353 is an apocalyptic number.

It is an amenable number.

133121353 is a deficient number, since it is larger than the sum of its proper divisors (7133047).

133121353 is a wasteful number, since it uses less digits than its factorization.

133121353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6351.

The product of its digits is 810, while the sum is 22.

The square root of 133121353 is about 11537.8227148800. The cubic root of 133121353 is about 510.6020737764.

Subtracting from 133121353 its sum of digits (22), we obtain a palindrome (133121331).

Adding to 133121353 its reverse (353121331), we get a palindrome (486242684).

The spelling of 133121353 in words is "one hundred thirty-three million, one hundred twenty-one thousand, three hundred fifty-three".