133477980 has 24 divisors (see below), whose sum is σ = 373738512. Its totient is φ = 35594112.

The previous prime is 133477963. The next prime is 133477991. The reversal of 133477980 is 89774331.

It is a super-2 number, since 2×133477980² = 35632742289760800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1112257 + ... + 1112376.

It is an arithmetic number, because the mean of its divisors is an integer number (15572438).

Almost surely, 2^133477980 is an apocalyptic number.

133477980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133477980 is an abundant number, since it is smaller than the sum of its proper divisors (240260532).

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

133477980 is a wasteful number, since it uses less digits than its factorization.

133477980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224645 (or 2224643 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 133477980 is about 11553.2670704005. The cubic root of 133477980 is about 511.0576283392.

The spelling of 133477980 in words is "one hundred thirty-three million, four hundred seventy-seven thousand, nine hundred eighty".