133313154 has 16 divisors (see below), whose sum is σ = 287136192. Its totient is φ = 41019408.

The previous prime is 133313153. The next prime is 133313161. The reversal of 133313154 is 451313331.

It is a super-4 number, since 4×133313154⁴ (a number of 34 digits) contains 4444 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133313153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 854494 + ... + 854649.

It is an arithmetic number, because the mean of its divisors is an integer number (17946012).

Almost surely, 2^133313154 is an apocalyptic number.

133313154 is an abundant number, since it is smaller than the sum of its proper divisors (153823038).

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

133313154 is a wasteful number, since it uses less digits than its factorization.

133313154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709161.

The product of its digits is 1620, while the sum is 24.

The square root of 133313154 is about 11546.1315599641. The cubic root of 133313154 is about 510.8471809396.

Adding to 133313154 its reverse (451313331), we get a palindrome (584626485).

The spelling of 133313154 in words is "one hundred thirty-three million, three hundred thirteen thousand, one hundred fifty-four".