133626620 has 36 divisors (see below), whose sum is σ = 295884120. Its totient is φ = 50552064.

The previous prime is 133626611. The next prime is 133626631. The reversal of 133626620 is 26626331.

It is a super-4 number, since 4×133626620⁴ (a number of 34 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225044 + ... + 225636.

Almost surely, 2^133626620 is an apocalyptic number.

133626620 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 133626620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147942060).

133626620 is an abundant number, since it is smaller than the sum of its proper divisors (162257500).

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

133626620 is an equidigital number, since it uses as much as digits as its factorization.

133626620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 133626620 is about 11559.6980929434. The cubic root of 133626620 is about 511.2472611806.

The spelling of 133626620 in words is "one hundred thirty-three million, six hundred twenty-six thousand, six hundred twenty".