134220637 has 2 divisors, whose sum is σ = 134220638. Its totient is φ = 134220636.

The previous prime is 134220629. The next prime is 134220643. The reversal of 134220637 is 736022431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122345721 + 11874916 = 11061^2 + 3446^2 .

It is a cyclic number.

It is not a de Polignac number, because 134220637 - 2³ = 134220629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134220137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67110318 + 67110319.

It is an arithmetic number, because the mean of its divisors is an integer number (67110319).

Almost surely, 2^134220637 is an apocalyptic number.

It is an amenable number.

134220637 is a deficient number, since it is larger than the sum of its proper divisors (1).

134220637 is an equidigital number, since it uses as much as digits as its factorization.

134220637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 134220637 is about 11585.3630499868. The cubic root of 134220637 is about 512.0036989581.

The spelling of 134220637 in words is "one hundred thirty-four million, two hundred twenty thousand, six hundred thirty-seven".