133671740 has 24 divisors (see below), whose sum is σ = 285315072. Its totient is φ = 52591680.

The previous prime is 133671739. The next prime is 133671751. The reversal of 133671740 is 47176331.

It is a junction number, because it is equal to n+sod(n) for n = 133671697 and 133671706.

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 7 ways as a sum of consecutive naturals, for example, 53564 + ... + 56003.

It is an arithmetic number, because the mean of its divisors is an integer number (11888128).

Almost surely, 2^133671740 is an apocalyptic number.

133671740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133671740 is an abundant number, since it is smaller than the sum of its proper divisors (151643332).

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

133671740 is a wasteful number, since it uses less digits than its factorization.

133671740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109637 (or 109635 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 133671740 is about 11561.6495362902. The cubic root of 133671740 is about 511.3047968238.

The spelling of 133671740 in words is "one hundred thirty-three million, six hundred seventy-one thousand, seven hundred forty".