133485121 has 16 divisors (see below), whose sum is σ = 166727808. Its totient is φ = 103824000.

The previous prime is 133485119. The next prime is 133485167. The reversal of 133485121 is 121584331.

It is a happy number.

It is not a de Polignac number, because 133485121 - 2¹ = 133485119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133485121.

It is not an unprimeable number, because it can be changed into a prime (133485181) 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, 52741 + ... + 55213.

It is an arithmetic number, because the mean of its divisors is an integer number (10420488).

Almost surely, 2^133485121 is an apocalyptic number.

133485121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133485121 is a deficient number, since it is larger than the sum of its proper divisors (33242687).

133485121 is a wasteful number, since it uses less digits than its factorization.

133485121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3192.

The product of its digits is 2880, while the sum is 28.

The square root of 133485121 is about 11553.5761130483. The cubic root of 133485121 is about 511.0667419459.

The spelling of 133485121 in words is "one hundred thirty-three million, four hundred eighty-five thousand, one hundred twenty-one".