133927489 has 2 divisors, whose sum is σ = 133927490. Its totient is φ = 133927488.

The previous prime is 133927477. The next prime is 133927517. The reversal of 133927489 is 984729331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83631025 + 50296464 = 9145^2 + 7092^2 .

It is a cyclic number.

It is not a de Polignac number, because 133927489 - 2¹³ = 133919297 is a prime.

It is not a weakly prime, because it can be changed into another prime (133927429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66963744 + 66963745.

It is an arithmetic number, because the mean of its divisors is an integer number (66963745).

Almost surely, 2^133927489 is an apocalyptic number.

It is an amenable number.

133927489 is a deficient number, since it is larger than the sum of its proper divisors (1).

133927489 is an equidigital number, since it uses as much as digits as its factorization.

133927489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 133927489 is about 11572.7044808031. The cubic root of 133927489 is about 511.6306756837.

The spelling of 133927489 in words is "one hundred thirty-three million, nine hundred twenty-seven thousand, four hundred eighty-nine".