133209075479 has 2 divisors, whose sum is σ = 133209075480. Its totient is φ = 133209075478.

The previous prime is 133209075443. The next prime is 133209075497. The reversal of 133209075479 is 974570902331.

Together with next prime (133209075497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133209075479 - 2¹⁶ = 133209009943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133209075379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66604537739 + 66604537740.

It is an arithmetic number, because the mean of its divisors is an integer number (66604537740).

Almost surely, 2^133209075479 is an apocalyptic number.

133209075479 is a deficient number, since it is larger than the sum of its proper divisors (1).

133209075479 is an equidigital number, since it uses as much as digits as its factorization.

133209075479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1428840, while the sum is 50.

The spelling of 133209075479 in words is "one hundred thirty-three billion, two hundred nine million, seventy-five thousand, four hundred seventy-nine".