133807079 has 4 divisors (see below), whose sum is σ = 152922384. Its totient is φ = 114691776.

The previous prime is 133807061. The next prime is 133807109. The reversal of 133807079 is 970708331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 970708331 = 3727 ⋅260453.

It is a cyclic number.

It is not a de Polignac number, because 133807079 - 2⁸ = 133806823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133807279) 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, 9557642 + ... + 9557655.

It is an arithmetic number, because the mean of its divisors is an integer number (38230596).

Almost surely, 2^133807079 is an apocalyptic number.

133807079 is a deficient number, since it is larger than the sum of its proper divisors (19115305).

133807079 is an equidigital number, since it uses as much as digits as its factorization.

133807079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19115304.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 133807079 is about 11567.5009833585. The cubic root of 133807079 is about 511.4772993508.

The spelling of 133807079 in words is "one hundred thirty-three million, eight hundred seven thousand, seventy-nine".