133118958 has 64 divisors (see below), whose sum is σ = 311980032. Its totient is φ = 37082880.

The previous prime is 133118957. The next prime is 133118971. The reversal of 133118958 is 859811331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133118957) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 571210 + ... + 571442.

It is an arithmetic number, because the mean of its divisors is an integer number (4874688).

Almost surely, 2^133118958 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133118958, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155990016).

133118958 is an abundant number, since it is smaller than the sum of its proper divisors (178861074).

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

133118958 is a wasteful number, since it uses less digits than its factorization.

133118958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529.

The product of its digits is 25920, while the sum is 39.

The square root of 133118958 is about 11537.7189253336. The cubic root of 133118958 is about 510.5990116598.

The spelling of 133118958 in words is "one hundred thirty-three million, one hundred eighteen thousand, nine hundred fifty-eight".