133343620 has 12 divisors (see below), whose sum is σ = 280021644. Its totient is φ = 53337440.

The previous prime is 133343593. The next prime is 133343633. The reversal of 133343620 is 26343331.

It can be written as a sum of positive squares in 2 ways, for example, as 77721856 + 55621764 = 8816^2 + 7458^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3333571 + ... + 3333610.

It is an arithmetic number, because the mean of its divisors is an integer number (23335137).

Almost surely, 2^133343620 is an apocalyptic number.

133343620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133343620 is an abundant number, since it is smaller than the sum of its proper divisors (146678024).

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

133343620 is a wasteful number, since it uses less digits than its factorization.

133343620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6667190 (or 6667188 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

The square root of 133343620 is about 11547.4508009344. The cubic root of 133343620 is about 510.8860925407.

Adding to 133343620 its reverse (26343331), we get a palindrome (159686951).

The spelling of 133343620 in words is "one hundred thirty-three million, three hundred forty-three thousand, six hundred twenty".