133946079 has 4 divisors (see below), whose sum is σ = 178594776. Its totient is φ = 89297384.

The previous prime is 133946069. The next prime is 133946081. The reversal of 133946079 is 970649331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 970649331 = 3 ⋅323549777.

It is a cyclic number.

It is not a de Polignac number, because 133946079 - 2⁴ = 133946063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133946079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133946069) 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, 22324344 + ... + 22324349.

It is an arithmetic number, because the mean of its divisors is an integer number (44648694).

Almost surely, 2^133946079 is an apocalyptic number.

133946079 is a deficient number, since it is larger than the sum of its proper divisors (44648697).

133946079 is an equidigital number, since it uses as much as digits as its factorization.

133946079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44648696.

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 133946079 is about 11573.5076359762. The cubic root of 133946079 is about 511.6543471353.

The spelling of 133946079 in words is "one hundred thirty-three million, nine hundred forty-six thousand, seventy-nine".