133151500 has 48 divisors (see below), whose sum is σ = 292140576. Its totient is φ = 53016000.

The previous prime is 133151401. The next prime is 133151509. The reversal of 133151500 is 5151331.

It is not an unprimeable number, because it can be changed into a prime (133151509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141030 + ... + 141970.

It is an arithmetic number, because the mean of its divisors is an integer number (6086262).

Almost surely, 2^133151500 is an apocalyptic number.

133151500 is a gapful number since it is divisible by the number (10) 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 133151500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146070288).

133151500 is an abundant number, since it is smaller than the sum of its proper divisors (158989076).

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

133151500 is a wasteful number, since it uses less digits than its factorization.

133151500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243 (or 1231 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 133151500 is about 11539.1290832541. The cubic root of 133151500 is about 510.6406149484.

It can be divided in two parts, 13 and 3151500, that added together give a palindrome (3151513).

The spelling of 133151500 in words is "one hundred thirty-three million, one hundred fifty-one thousand, five hundred".