134713813 has 4 divisors (see below), whose sum is σ = 145076428. Its totient is φ = 124351200.

The previous prime is 134713801. The next prime is 134713837. The reversal of 134713813 is 318317431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 71876484 + 62837329 = 8478^2 + 7927^2 .

It is a cyclic number.

It is not a de Polignac number, because 134713813 - 2⁹ = 134713301 is a prime.

It is a super-2 number, since 2×134713813² = 36295622825997938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134713213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5181288 + ... + 5181313.

It is an arithmetic number, because the mean of its divisors is an integer number (36269107).

Almost surely, 2^134713813 is an apocalyptic number.

134713813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

134713813 is a deficient number, since it is larger than the sum of its proper divisors (10362615).

134713813 is a wasteful number, since it uses less digits than its factorization.

134713813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10362614.

The product of its digits is 6048, while the sum is 31.

The square root of 134713813 is about 11606.6279771517. The cubic root of 134713813 is about 512.6300291127.

The spelling of 134713813 in words is "one hundred thirty-four million, seven hundred thirteen thousand, eight hundred thirteen".