134214209 has 2 divisors, whose sum is σ = 134214210. Its totient is φ = 134214208.

The previous prime is 134214191. The next prime is 134214229. The reversal of 134214209 is 902412431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111365809 + 22848400 = 10553^2 + 4780^2 .

It is a cyclic number.

It is not a de Polignac number, because 134214209 - 2²⁴ = 117436993 is a prime.

It is not a weakly prime, because it can be changed into another prime (134214229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67107104 + 67107105.

It is an arithmetic number, because the mean of its divisors is an integer number (67107105).

Almost surely, 2^134214209 is an apocalyptic number.

It is an amenable number.

134214209 is a deficient number, since it is larger than the sum of its proper divisors (1).

134214209 is an equidigital number, since it uses as much as digits as its factorization.

134214209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 134214209 is about 11585.0856276508. The cubic root of 134214209 is about 511.9955253210.

It can be divided in two parts, 1342 and 14209, that added together give a palindrome (15551).

The spelling of 134214209 in words is "one hundred thirty-four million, two hundred fourteen thousand, two hundred nine".