133346667 has 18 divisors (see below), whose sum is σ = 182474812. Its totient is φ = 86617664.

The previous prime is 133346639. The next prime is 133346677. The reversal of 133346667 is 766643331.

It is not a de Polignac number, because 133346667 - 2⁷ = 133346539 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (133346677) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1180003 + ... + 1180115.

Almost surely, 2^133346667 is an apocalyptic number.

133346667 is a deficient number, since it is larger than the sum of its proper divisors (49128145).

133346667 is an frugal number, since it uses more digits than its factorization.

133346667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 175 counting only the distinct ones).

The product of its digits is 163296, while the sum is 39.

The square root of 133346667 is about 11547.5827340617. The cubic root of 133346667 is about 510.8899838856.

Adding to 133346667 its reverse (766643331), we get a palindrome (899989998).

The spelling of 133346667 in words is "one hundred thirty-three million, three hundred forty-six thousand, six hundred sixty-seven".