134011213 has 4 divisors (see below), whose sum is σ = 153155680. Its totient is φ = 114866748.

The previous prime is 134011211. The next prime is 134011217. The reversal of 134011213 is 312110431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312110431 = 16993 ⋅18367.

It is a cyclic number.

It is not a de Polignac number, because 134011213 - 2¹ = 134011211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134011211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9572223 + ... + 9572236.

It is an arithmetic number, because the mean of its divisors is an integer number (38288920).

Almost surely, 2^134011213 is an apocalyptic number.

It is an amenable number.

134011213 is a deficient number, since it is larger than the sum of its proper divisors (19144467).

134011213 is an equidigital number, since it uses as much as digits as its factorization.

134011213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19144466.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 134011213 is about 11576.3212204914. The cubic root of 134011213 is about 511.7372678004.

Adding to 134011213 its reverse (312110431), we get a palindrome (446121644).

The spelling of 134011213 in words is "one hundred thirty-four million, eleven thousand, two hundred thirteen".