133568003 has 4 divisors (see below), whose sum is σ = 136088208. Its totient is φ = 131047800.

The previous prime is 133567981. The next prime is 133568009. The reversal of 133568003 is 300865331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300865331 = 13 ⋅23143487.

It is not a de Polignac number, because 133568003 - 2¹² = 133563907 is a prime.

It is a super-2 number, since 2×133568003² = 35680822850816018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133568009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1260023 + ... + 1260128.

It is an arithmetic number, because the mean of its divisors is an integer number (34022052).

Almost surely, 2^133568003 is an apocalyptic number.

133568003 is a deficient number, since it is larger than the sum of its proper divisors (2520205).

133568003 is an equidigital number, since it uses as much as digits as its factorization.

133568003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2520204.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 133568003 is about 11557.1624112496. The cubic root of 133568003 is about 511.1724952303.

The spelling of 133568003 in words is "one hundred thirty-three million, five hundred sixty-eight thousand, three".