133031131477 has 2 divisors, whose sum is σ = 133031131478. Its totient is φ = 133031131476.

The previous prime is 133031131421. The next prime is 133031131501. The reversal of 133031131477 is 774131130331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116793746001 + 16237385476 = 341751^2 + 127426^2 .

It is a cyclic number.

It is not a de Polignac number, because 133031131477 - 2²⁷ = 132896913749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133031131417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66515565738 + 66515565739.

It is an arithmetic number, because the mean of its divisors is an integer number (66515565739).

Almost surely, 2^133031131477 is an apocalyptic number.

It is an amenable number.

133031131477 is a deficient number, since it is larger than the sum of its proper divisors (1).

133031131477 is an equidigital number, since it uses as much as digits as its factorization.

133031131477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 34.

The spelling of 133031131477 in words is "one hundred thirty-three billion, thirty-one million, one hundred thirty-one thousand, four hundred seventy-seven".