133121301 has 16 divisors (see below), whose sum is σ = 186744768. Its totient is φ = 84240000.

The previous prime is 133121299. The next prime is 133121311. The reversal of 133121301 is 103121331.

It is not a de Polignac number, because 133121301 - 2¹ = 133121299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133121311) 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, 10075 + ... + 19176.

It is an arithmetic number, because the mean of its divisors is an integer number (11671548).

Almost surely, 2^133121301 is an apocalyptic number.

It is an amenable number.

133121301 is a deficient number, since it is larger than the sum of its proper divisors (53623467).

133121301 is a wasteful number, since it uses less digits than its factorization.

133121301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29332.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 133121301 is about 11537.8204614216. The cubic root of 133121301 is about 510.6020072924.

Adding to 133121301 its reverse (103121331), we get a palindrome (236242632).

The spelling of 133121301 in words is "one hundred thirty-three million, one hundred twenty-one thousand, three hundred one".