133145130 has 16 divisors (see below), whose sum is σ = 319548384. Its totient is φ = 35505360.

The previous prime is 133145107. The next prime is 133145143. The reversal of 133145130 is 31541331.

It is a junction number, because it is equal to n+sod(n) for n = 133145097 and 133145106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2219056 + ... + 2219115.

It is an arithmetic number, because the mean of its divisors is an integer number (19971774).

Almost surely, 2^133145130 is an apocalyptic number.

133145130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133145130 is an abundant number, since it is smaller than the sum of its proper divisors (186403254).

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

133145130 is a wasteful number, since it uses less digits than its factorization.

133145130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4438181.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 133145130 is about 11538.8530625882. The cubic root of 133145130 is about 510.6324717616.

Adding to 133145130 its reverse (31541331), we get a palindrome (164686461).

The spelling of 133145130 in words is "one hundred thirty-three million, one hundred forty-five thousand, one hundred thirty".