134400213 has 12 divisors (see below), whose sum is σ = 198264768. Its totient is φ = 87693480.

The previous prime is 134400199. The next prime is 134400223. The reversal of 134400213 is 312004431.

134400213 is a `hidden beast` number, since 13 + 440 + 0 + 213 = 666.

It is not a de Polignac number, because 134400213 - 2¹² = 134396117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134400223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158443 + ... + 159288.

It is an arithmetic number, because the mean of its divisors is an integer number (16522064).

Almost surely, 2^134400213 is an apocalyptic number.

It is an amenable number.

134400213 is a deficient number, since it is larger than the sum of its proper divisors (63864555).

134400213 is a wasteful number, since it uses less digits than its factorization.

134400213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317784 (or 317781 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 134400213 is about 11593.1105834457. The cubic root of 134400213 is about 512.2319365934.

Adding to 134400213 its reverse (312004431), we get a palindrome (446404644).

The spelling of 134400213 in words is "one hundred thirty-four million, four hundred thousand, two hundred thirteen".