133480740 has 24 divisors (see below), whose sum is σ = 373746240. Its totient is φ = 35594848.

The previous prime is 133480733. The next prime is 133480741. The reversal of 133480740 is 47084331.

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

It is a junction number, because it is equal to n+sod(n) for n = 133480698 and 133480707.

It is not an unprimeable number, because it can be changed into a prime (133480741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1112280 + ... + 1112399.

It is an arithmetic number, because the mean of its divisors is an integer number (15572760).

Almost surely, 2^133480740 is an apocalyptic number.

133480740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133480740 is an abundant number, since it is smaller than the sum of its proper divisors (240265500).

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

133480740 is a wasteful number, since it uses less digits than its factorization.

133480740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224691 (or 2224689 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 133480740 is about 11553.3865165154. The cubic root of 133480740 is about 511.0611507912.

The spelling of 133480740 in words is "one hundred thirty-three million, four hundred eighty thousand, seven hundred forty".