133131030 has 16 divisors (see below), whose sum is σ = 319514544. Its totient is φ = 35501600.

The previous prime is 133131017. The next prime is 133131067. The reversal of 133131030 is 30131331.

133131030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×133131030² = 35447742297721800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 2218821 + ... + 2218880.

It is an arithmetic number, because the mean of its divisors is an integer number (19969659).

Almost surely, 2^133131030 is an apocalyptic number.

133131030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133131030 is an abundant number, since it is smaller than the sum of its proper divisors (186383514).

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

133131030 is a wasteful number, since it uses less digits than its factorization.

133131030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4437711.

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 133131030 is about 11538.2420671435. The cubic root of 133131030 is about 510.6144458876.

Adding to 133131030 its reverse (30131331), we get a palindrome (163262361).

The spelling of 133131030 in words is "one hundred thirty-three million, one hundred thirty-one thousand, thirty".