133499620 has 24 divisors (see below), whose sum is σ = 282973824. Its totient is φ = 52899936.

The previous prime is 133499617. The next prime is 133499647. The reversal of 133499620 is 26994331.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 133499620.

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, 29052 + ... + 33331.

It is an arithmetic number, because the mean of its divisors is an integer number (11790576).

Almost surely, 2^133499620 is an apocalyptic number.

133499620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133499620 is an abundant number, since it is smaller than the sum of its proper divisors (149474204).

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

133499620 is a wasteful number, since it uses less digits than its factorization.

133499620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62499 (or 62497 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 133499620 is about 11554.2035640714. The cubic root of 133499620 is about 511.0852451028.

The spelling of 133499620 in words is "one hundred thirty-three million, four hundred ninety-nine thousand, six hundred twenty".