134220887 has 2 divisors, whose sum is σ = 134220888. Its totient is φ = 134220886.

The previous prime is 134220881. The next prime is 134220901. The reversal of 134220887 is 788022431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134220887 - 2⁴ = 134220871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134220881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67110443 + 67110444.

It is an arithmetic number, because the mean of its divisors is an integer number (67110444).

Almost surely, 2^134220887 is an apocalyptic number.

134220887 is a deficient number, since it is larger than the sum of its proper divisors (1).

134220887 is an equidigital number, since it uses as much as digits as its factorization.

134220887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 134220887 is about 11585.3738394581. The cubic root of 134220887 is about 512.0040168447.

The spelling of 134220887 in words is "one hundred thirty-four million, two hundred twenty thousand, eight hundred eighty-seven".