133465979 has 2 divisors, whose sum is σ = 133465980. Its totient is φ = 133465978.

The previous prime is 133465967. The next prime is 133466027. The reversal of 133465979 is 979564331.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133465979 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133465879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66732989 + 66732990.

It is an arithmetic number, because the mean of its divisors is an integer number (66732990).

Almost surely, 2^133465979 is an apocalyptic number.

133465979 is a deficient number, since it is larger than the sum of its proper divisors (1).

133465979 is an equidigital number, since it uses as much as digits as its factorization.

133465979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 612360, while the sum is 47.

The square root of 133465979 is about 11552.7476818288. The cubic root of 133465979 is about 511.0423114896.

The spelling of 133465979 in words is "one hundred thirty-three million, four hundred sixty-five thousand, nine hundred seventy-nine".