133420980 has 96 divisors (see below), whose sum is σ = 465776640. Its totient is φ = 27722880.

The previous prime is 133420979. The next prime is 133421003. The reversal of 133420980 is 89024331.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9820 + ... + 19059.

It is an arithmetic number, because the mean of its divisors is an integer number (4851840).

Almost surely, 2^133420980 is an apocalyptic number.

133420980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133420980 is an abundant number, since it is smaller than the sum of its proper divisors (332355660).

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

133420980 is a wasteful number, since it uses less digits than its factorization.

133420980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28909 (or 28907 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 133420980 is about 11550.7999722963. The cubic root of 133420980 is about 510.9848711889.

The spelling of 133420980 in words is "one hundred thirty-three million, four hundred twenty thousand, nine hundred eighty".