134992729 has 4 divisors (see below), whose sum is σ = 135066676. Its totient is φ = 134918784.

The previous prime is 134992721. The next prime is 134992757. The reversal of 134992729 is 927299431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 927299431 = 12689 ⋅73079.

It can be written as a sum of positive squares in 2 ways, for example, as 64432729 + 70560000 = 8027^2 + 8400^2 .

It is a cyclic number.

It is not a de Polignac number, because 134992729 - 2³ = 134992721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134992721) 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 in 3 ways as a sum of consecutive naturals, for example, 34164 + ... + 37909.

It is an arithmetic number, because the mean of its divisors is an integer number (33766669).

Almost surely, 2^134992729 is an apocalyptic number.

It is an amenable number.

134992729 is a deficient number, since it is larger than the sum of its proper divisors (73947).

134992729 is an equidigital number, since it uses as much as digits as its factorization.

134992729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73946.

The product of its digits is 244944, while the sum is 46.

The square root of 134992729 is about 11618.6371403879. The cubic root of 134992729 is about 512.9835740339.

The spelling of 134992729 in words is "one hundred thirty-four million, nine hundred ninety-two thousand, seven hundred twenty-nine".