133121454 has 8 divisors (see below), whose sum is σ = 266242920. Its totient is φ = 44373816.

The previous prime is 133121453. The next prime is 133121477. The reversal of 133121454 is 454121331.

It is a happy number.

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

133121454 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133121453) 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, 11093449 + ... + 11093460.

It is an arithmetic number, because the mean of its divisors is an integer number (33280365).

Almost surely, 2^133121454 is an apocalyptic number.

133121454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133121454 is a wasteful number, since it uses less digits than its factorization.

133121454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22186914.

The product of its digits is 1440, while the sum is 24.

The square root of 133121454 is about 11537.8270917881. The cubic root of 133121454 is about 510.6022029087.

Adding to 133121454 its reverse (454121331), we get a palindrome (587242785).

The spelling of 133121454 in words is "one hundred thirty-three million, one hundred twenty-one thousand, four hundred fifty-four".