133908174479 has 2 divisors, whose sum is σ = 133908174480. Its totient is φ = 133908174478.

The previous prime is 133908174473. The next prime is 133908174481. The reversal of 133908174479 is 974471809331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133908174479 is a prime.

It is a Sophie Germain prime.

Together with 133908174481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133908174473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66954087239 + 66954087240.

It is an arithmetic number, because the mean of its divisors is an integer number (66954087240).

Almost surely, 2^133908174479 is an apocalyptic number.

133908174479 is a deficient number, since it is larger than the sum of its proper divisors (1).

133908174479 is an equidigital number, since it uses as much as digits as its factorization.

133908174479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 56.

The spelling of 133908174479 in words is "one hundred thirty-three billion, nine hundred eight million, one hundred seventy-four thousand, four hundred seventy-nine".