134574721 has 2 divisors, whose sum is σ = 134574722. Its totient is φ = 134574720.

The previous prime is 134574719. The next prime is 134574731. The reversal of 134574721 is 127475431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111534721 + 23040000 = 10561^2 + 4800^2 .

It is a cyclic number.

It is not a de Polignac number, because 134574721 - 2¹ = 134574719 is a prime.

It is a super-2 number, since 2×134574721² = 36220711064455682, which contains 22 as substring.

Together with 134574719, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (134574731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67287360 + 67287361.

It is an arithmetic number, because the mean of its divisors is an integer number (67287361).

Almost surely, 2^134574721 is an apocalyptic number.

It is an amenable number.

134574721 is a deficient number, since it is larger than the sum of its proper divisors (1).

134574721 is an equidigital number, since it uses as much as digits as its factorization.

134574721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23520, while the sum is 34.

The square root of 134574721 is about 11600.6345085086. The cubic root of 134574721 is about 512.4535382033.

The spelling of 134574721 in words is "one hundred thirty-four million, five hundred seventy-four thousand, seven hundred twenty-one".