133154224 has 80 divisors (see below), whose sum is σ = 305980416. Its totient is φ = 54950400.

The previous prime is 133154221. The next prime is 133154227. The reversal of 133154224 is 422451331.

It is an interprime number because it is at equal distance from previous prime (133154221) and next prime (133154227).

It is not an unprimeable number, because it can be changed into a prime (133154221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491209 + ... + 491479.

Almost surely, 2^133154224 is an apocalyptic number.

133154224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133154224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152990208).

133154224 is an abundant number, since it is smaller than the sum of its proper divisors (172826192).

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

133154224 is a wasteful number, since it uses less digits than its factorization.

133154224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 428 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 133154224 is about 11539.2471158217. The cubic root of 133154224 is about 510.6440971361.

It can be divided in two parts, 1331 and 54224, that added together give a palindrome (55555).

The spelling of 133154224 in words is "one hundred thirty-three million, one hundred fifty-four thousand, two hundred twenty-four".