134989837 has 2 divisors, whose sum is σ = 134989838. Its totient is φ = 134989836.

The previous prime is 134989831. The next prime is 134989847. The reversal of 134989837 is 738989431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127667401 + 7322436 = 11299^2 + 2706^2 .

It is a cyclic number.

It is not a de Polignac number, because 134989837 - 2⁷ = 134989709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134989831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67494918 + 67494919.

It is an arithmetic number, because the mean of its divisors is an integer number (67494919).

Almost surely, 2^134989837 is an apocalyptic number.

It is an amenable number.

134989837 is a deficient number, since it is larger than the sum of its proper divisors (1).

134989837 is an equidigital number, since it uses as much as digits as its factorization.

134989837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 52.

The square root of 134989837 is about 11618.5126845048. The cubic root of 134989837 is about 512.9799107277.

The spelling of 134989837 in words is "one hundred thirty-four million, nine hundred eighty-nine thousand, eight hundred thirty-seven".