134005213 has 4 divisors (see below), whose sum is σ = 134065948. Its totient is φ = 133944480.

The previous prime is 134005211. The next prime is 134005217. The reversal of 134005213 is 312500431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312500431 = 14983 ⋅20857.

It can be written as a sum of positive squares in 2 ways, for example, as 88604569 + 45400644 = 9413^2 + 6738^2 .

It is a cyclic number.

It is not a de Polignac number, because 134005213 - 2¹ = 134005211 is a prime.

It is a super-2 number, since 2×134005213² = 35914794222350738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134005211) 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, 26928 + ... + 31513.

It is an arithmetic number, because the mean of its divisors is an integer number (33516487).

Almost surely, 2^134005213 is an apocalyptic number.

It is an amenable number.

134005213 is a deficient number, since it is larger than the sum of its proper divisors (60735).

134005213 is an equidigital number, since it uses as much as digits as its factorization.

134005213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60734.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 134005213 is about 11576.0620679055. The cubic root of 134005213 is about 511.7296304558.

Adding to 134005213 its reverse (312500431), we get a palindrome (446505644).

The spelling of 134005213 in words is "one hundred thirty-four million, five thousand, two hundred thirteen".