134986529 has 2 divisors, whose sum is σ = 134986530. Its totient is φ = 134986528.

The previous prime is 134986519. The next prime is 134986531. The reversal of 134986529 is 925689431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89397025 + 45589504 = 9455^2 + 6752^2 .

It is a cyclic number.

It is not a de Polignac number, because 134986529 - 2¹² = 134982433 is a prime.

It is a super-2 number, since 2×134986529² = 36442726022935682, which contains 22 as substring.

Together with 134986531, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (134986519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67493264 + 67493265.

It is an arithmetic number, because the mean of its divisors is an integer number (67493265).

Almost surely, 2^134986529 is an apocalyptic number.

It is an amenable number.

134986529 is a deficient number, since it is larger than the sum of its proper divisors (1).

134986529 is an equidigital number, since it uses as much as digits as its factorization.

134986529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 47.

The square root of 134986529 is about 11618.3703246195. The cubic root of 134986529 is about 512.9757204088.

It can be divided in two parts, 1349 and 86529, that added together give a palindrome (87878).

The spelling of 134986529 in words is "one hundred thirty-four million, nine hundred eighty-six thousand, five hundred twenty-nine".