816134529 has 8 divisors (see below), whose sum is σ = 1243633600. Its totient is φ = 466362576.

The previous prime is 816134509. The next prime is 816134533. The reversal of 816134529 is 925431618.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 816134529 - 2⁵ = 816134497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816134509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19431754 + ... + 19431795.

It is an arithmetic number, because the mean of its divisors is an integer number (155454200).

Almost surely, 2^816134529 is an apocalyptic number.

It is an amenable number.

816134529 is a deficient number, since it is larger than the sum of its proper divisors (427499071).

816134529 is a wasteful number, since it uses less digits than its factorization.

816134529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38863559.

The product of its digits is 51840, while the sum is 39.

The square root of 816134529 is about 28568.0683456197. The cubic root of 816134529 is about 934.5170960936.

The spelling of 816134529 in words is "eight hundred sixteen million, one hundred thirty-four thousand, five hundred twenty-nine".