133208545 has 8 divisors (see below), whose sum is σ = 159967080. Its totient is φ = 106488960.

The previous prime is 133208527. The next prime is 133208587. The reversal of 133208545 is 545802331.

It can be written as a sum of positive squares in 4 ways, for example, as 23126481 + 110082064 = 4809^2 + 10492^2 .

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

It is not a de Polignac number, because 133208545 - 2⁷ = 133208417 is a prime.

It is a super-2 number, since 2×133208545² = 35489032922034050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1590 + ... + 16399.

It is an arithmetic number, because the mean of its divisors is an integer number (19995885).

Almost surely, 2^133208545 is an apocalyptic number.

It is an amenable number.

133208545 is a deficient number, since it is larger than the sum of its proper divisors (26758535).

133208545 is a wasteful number, since it uses less digits than its factorization.

133208545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19475.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 133208545 is about 11541.6006255632. The cubic root of 133208545 is about 510.7135277206.

The spelling of 133208545 in words is "one hundred thirty-three million, two hundred eight thousand, five hundred forty-five".