814128537 has 8 divisors (see below), whose sum is σ = 1088084800. Its totient is φ = 541462320.

The previous prime is 814128527. The next prime is 814128563. The reversal of 814128537 is 735821418.

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

It is not a de Polignac number, because 814128537 - 2¹⁰ = 814127513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 814128495 and 814128504.

It is not an unprimeable number, because it can be changed into a prime (814128517) 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, 321037 + ... + 323562.

It is an arithmetic number, because the mean of its divisors is an integer number (136010600).

Almost surely, 2^814128537 is an apocalyptic number.

It is an amenable number.

814128537 is a deficient number, since it is larger than the sum of its proper divisors (273956263).

814128537 is a wasteful number, since it uses less digits than its factorization.

814128537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645023.

The product of its digits is 53760, while the sum is 39.

The square root of 814128537 is about 28532.9377562143. The cubic root of 814128537 is about 933.7508123697.

The spelling of 814128537 in words is "eight hundred fourteen million, one hundred twenty-eight thousand, five hundred thirty-seven".