134657563 has 4 divisors (see below), whose sum is σ = 135013240. Its totient is φ = 134301888.

The previous prime is 134657557. The next prime is 134657569. The reversal of 134657563 is 365756431.

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

It is an interprime number because it is at equal distance from previous prime (134657557) and next prime (134657569).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134657563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134657569) 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, 177270 + ... + 178027.

It is an arithmetic number, because the mean of its divisors is an integer number (33753310).

Almost surely, 2^134657563 is an apocalyptic number.

134657563 is a deficient number, since it is larger than the sum of its proper divisors (355677).

134657563 is an equidigital number, since it uses as much as digits as its factorization.

134657563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355676.

The product of its digits is 226800, while the sum is 40.

The square root of 134657563 is about 11604.2045397347. The cubic root of 134657563 is about 512.5586693096.

The spelling of 134657563 in words is "one hundred thirty-four million, six hundred fifty-seven thousand, five hundred sixty-three".