133161047 has 2 divisors, whose sum is σ = 133161048. Its totient is φ = 133161046.

The previous prime is 133161031. The next prime is 133161073. The reversal of 133161047 is 740161331.

It is an a-pointer prime, because the next prime (133161073) can be obtained adding 133161047 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133161047 - 2⁴ = 133161031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133161097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66580523 + 66580524.

It is an arithmetic number, because the mean of its divisors is an integer number (66580524).

Almost surely, 2^133161047 is an apocalyptic number.

133161047 is a deficient number, since it is larger than the sum of its proper divisors (1).

133161047 is an equidigital number, since it uses as much as digits as its factorization.

133161047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 133161047 is about 11539.5427552395. The cubic root of 133161047 is about 510.6528190153.

The spelling of 133161047 in words is "one hundred thirty-three million, one hundred sixty-one thousand, forty-seven".