134389237 has 2 divisors, whose sum is σ = 134389238. Its totient is φ = 134389236.

The previous prime is 134389187. The next prime is 134389243. The reversal of 134389237 is 732983431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71757841 + 62631396 = 8471^2 + 7914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134389237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134389237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134389037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67194618 + 67194619.

It is an arithmetic number, because the mean of its divisors is an integer number (67194619).

Almost surely, 2^134389237 is an apocalyptic number.

It is an amenable number.

134389237 is a deficient number, since it is larger than the sum of its proper divisors (1).

134389237 is an equidigital number, since it uses as much as digits as its factorization.

134389237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 134389237 is about 11592.6371891818. The cubic root of 134389237 is about 512.2179921443.

The spelling of 134389237 in words is "one hundred thirty-four million, three hundred eighty-nine thousand, two hundred thirty-seven".