134222521 has 2 divisors, whose sum is σ = 134222522. Its totient is φ = 134222520.

The previous prime is 134222461. The next prime is 134222533. The reversal of 134222521 is 125222431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127125625 + 7096896 = 11275^2 + 2664^2 .

It is a cyclic number.

It is not a de Polignac number, because 134222521 - 2⁹ = 134222009 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 134222492 and 134222501.

It is not a weakly prime, because it can be changed into another prime (134222551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67111260 + 67111261.

It is an arithmetic number, because the mean of its divisors is an integer number (67111261).

Almost surely, 2^134222521 is an apocalyptic number.

It is an amenable number.

134222521 is a deficient number, since it is larger than the sum of its proper divisors (1).

134222521 is an equidigital number, since it uses as much as digits as its factorization.

134222521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 22.

The square root of 134222521 is about 11585.4443591949. Note that the first 3 decimals coincide. The cubic root of 134222521 is about 512.0060945421.

Adding to 134222521 its reverse (125222431), we get a palindrome (259444952).

The spelling of 134222521 in words is "one hundred thirty-four million, two hundred twenty-two thousand, five hundred twenty-one".