133450164 has 72 divisors (see below), whose sum is σ = 350558208. Its totient is φ = 42759360.

The previous prime is 133450151. The next prime is 133450169. The reversal of 133450164 is 461054331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133450169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219549 + ... + 220155.

It is an arithmetic number, because the mean of its divisors is an integer number (4868864).

Almost surely, 2^133450164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133450164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175279104).

133450164 is an abundant number, since it is smaller than the sum of its proper divisors (217108044).

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

133450164 is a wasteful number, since it uses less digits than its factorization.

133450164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845 (or 840 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 133450164 is about 11552.0631923479. The cubic root of 133450164 is about 511.0221254381.

The spelling of 133450164 in words is "one hundred thirty-three million, four hundred fifty thousand, one hundred sixty-four".