134242213 has 6 divisors (see below), whose sum is σ = 156159366. Its totient is φ = 115064712.

The previous prime is 134242211. The next prime is 134242219. The reversal of 134242213 is 312242431.

It can be written as a sum of positive squares in only one way, i.e., 108201604 + 26040609 = 10402^2 + 5103^2 .

It is not a de Polignac number, because 134242213 - 2¹ = 134242211 is a prime.

It is a super-2 number, since 2×134242213² = 36041943502274738, 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 (134242211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1369770 + ... + 1369867.

It is an arithmetic number, because the mean of its divisors is an integer number (26026561).

Almost surely, 2^134242213 is an apocalyptic number.

It is an amenable number.

134242213 is a deficient number, since it is larger than the sum of its proper divisors (21917153).

134242213 is an equidigital number, since it uses as much as digits as its factorization.

134242213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2739651 (or 2739644 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 134242213 is about 11586.2941875304. The cubic root of 134242213 is about 512.0311323945.

Adding to 134242213 its reverse (312242431), we get a palindrome (446484644).

The spelling of 134242213 in words is "one hundred thirty-four million, two hundred forty-two thousand, two hundred thirteen".