134421187 has 2 divisors, whose sum is σ = 134421188. Its totient is φ = 134421186.

The previous prime is 134421179. The next prime is 134421271. The reversal of 134421187 is 781124431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134421187 - 2³ = 134421179 is a prime.

It is not a weakly prime, because it can be changed into another prime (134421167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67210593 + 67210594.

It is an arithmetic number, because the mean of its divisors is an integer number (67210594).

Almost surely, 2^134421187 is an apocalyptic number.

134421187 is a deficient number, since it is larger than the sum of its proper divisors (1).

134421187 is an equidigital number, since it uses as much as digits as its factorization.

134421187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 31.

The square root of 134421187 is about 11594.0151371300. The cubic root of 134421187 is about 512.2585808811.

The spelling of 134421187 in words is "one hundred thirty-four million, four hundred twenty-one thousand, one hundred eighty-seven".