134556817 has 6 divisors (see below), whose sum is σ = 137482898. Its totient is φ = 131691744.

The previous prime is 134556809. The next prime is 134556823. The reversal of 134556817 is 718655431.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 69205761 + 65351056 = 8319^2 + 8084^2 .

It is not a de Polignac number, because 134556817 - 2³ = 134556809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134556817.

It is not an unprimeable number, because it can be changed into a prime (134556517) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28248 + ... + 32665.

Almost surely, 2^134556817 is an apocalyptic number.

It is an amenable number.

134556817 is a deficient number, since it is larger than the sum of its proper divisors (2926081).

134556817 is an frugal number, since it uses more digits than its factorization.

134556817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61007 (or 60960 counting only the distinct ones).

The product of its digits is 100800, while the sum is 40.

The square root of 134556817 is about 11599.8628009128. The cubic root of 134556817 is about 512.4308113618.

The spelling of 134556817 in words is "one hundred thirty-four million, five hundred fifty-six thousand, eight hundred seventeen".