133902143 has 2 divisors, whose sum is σ = 133902144. Its totient is φ = 133902142.

The previous prime is 133902091. The next prime is 133902161. The reversal of 133902143 is 341209331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133902143 - 2¹⁸ = 133639999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133902943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66951071 + 66951072.

It is an arithmetic number, because the mean of its divisors is an integer number (66951072).

Almost surely, 2^133902143 is an apocalyptic number.

133902143 is a deficient number, since it is larger than the sum of its proper divisors (1).

133902143 is an equidigital number, since it uses as much as digits as its factorization.

133902143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 133902143 is about 11571.6093522033. The cubic root of 133902143 is about 511.5983979954.

The spelling of 133902143 in words is "one hundred thirty-three million, nine hundred two thousand, one hundred forty-three".