133629620 has 12 divisors (see below), whose sum is σ = 280622244. Its totient is φ = 53451840.

The previous prime is 133629611. The next prime is 133629637. The reversal of 133629620 is 26926331.

It can be written as a sum of positive squares in 2 ways, for example, as 72352036 + 61277584 = 8506^2 + 7828^2 .

It is a congruent number.

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, 3340721 + ... + 3340760.

It is an arithmetic number, because the mean of its divisors is an integer number (23385187).

Almost surely, 2^133629620 is an apocalyptic number.

133629620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133629620 is an abundant number, since it is smaller than the sum of its proper divisors (146992624).

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

133629620 is a wasteful number, since it uses less digits than its factorization.

133629620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6681490 (or 6681488 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 133629620 is about 11559.8278533895. The cubic root of 133629620 is about 511.2510870907.

The spelling of 133629620 in words is "one hundred thirty-three million, six hundred twenty-nine thousand, six hundred twenty".