134400859 has 2 divisors, whose sum is σ = 134400860. Its totient is φ = 134400858.

The previous prime is 134400853. The next prime is 134400869. The reversal of 134400859 is 958004431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134400859 - 2⁹ = 134400347 is a prime.

It is not a weakly prime, because it can be changed into another prime (134400853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67200429 + 67200430.

It is an arithmetic number, because the mean of its divisors is an integer number (67200430).

Almost surely, 2^134400859 is an apocalyptic number.

134400859 is a deficient number, since it is larger than the sum of its proper divisors (1).

134400859 is an equidigital number, since it uses as much as digits as its factorization.

134400859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 134400859 is about 11593.1384447871. The cubic root of 134400859 is about 512.2327572799.

The spelling of 134400859 in words is "one hundred thirty-four million, four hundred thousand, eight hundred fifty-nine".