133480237 has 8 divisors (see below), whose sum is σ = 146155392. Its totient is φ = 120895200.

The previous prime is 133480231. The next prime is 133480241. The reversal of 133480237 is 732084331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133480237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133480199 and 133480208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133480231) by changing a digit.

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, 19408 + ... + 25369.

It is an arithmetic number, because the mean of its divisors is an integer number (18269424).

Almost surely, 2^133480237 is an apocalyptic number.

It is an amenable number.

133480237 is a deficient number, since it is larger than the sum of its proper divisors (12675155).

133480237 is a wasteful number, since it uses less digits than its factorization.

133480237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45059.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 133480237 is about 11553.3647479858. The cubic root of 133480237 is about 511.0605088407.

The spelling of 133480237 in words is "one hundred thirty-three million, four hundred eighty thousand, two hundred thirty-seven".