133206473 has 12 divisors (see below), whose sum is σ = 145133568. Its totient is φ = 122114520.

The previous prime is 133206467. The next prime is 133206481. The reversal of 133206473 is 374602331.

It is a happy number.

It is not a de Polignac number, because 133206473 - 2⁴ = 133206457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133206443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5240 + ... + 17142.

It is an arithmetic number, because the mean of its divisors is an integer number (12094464).

Almost surely, 2^133206473 is an apocalyptic number.

It is an amenable number.

133206473 is a deficient number, since it is larger than the sum of its proper divisors (11927095).

133206473 is a wasteful number, since it uses less digits than its factorization.

133206473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11972 (or 11953 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 133206473 is about 11541.5108629676. The cubic root of 133206473 is about 510.7108797325.

The spelling of 133206473 in words is "one hundred thirty-three million, two hundred six thousand, four hundred seventy-three".