814635131 has 4 divisors (see below), whose sum is σ = 815883312. Its totient is φ = 813386952.

The previous prime is 814635119. The next prime is 814635139. The reversal of 814635131 is 131536418.

814635131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 814635131 - 2¹⁸ = 814372987 is a prime.

It is a super-2 number, since 2×814635131² = 1327260793318774322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (814635139) 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, 623111 + ... + 624416.

It is an arithmetic number, because the mean of its divisors is an integer number (203970828).

Almost surely, 2^814635131 is an apocalyptic number.

814635131 is a deficient number, since it is larger than the sum of its proper divisors (1248181).

814635131 is a wasteful number, since it uses less digits than its factorization.

814635131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248180.

The product of its digits is 8640, while the sum is 32.

The square root of 814635131 is about 28541.8137300347. The cubic root of 814635131 is about 933.9444486553.

The spelling of 814635131 in words is "eight hundred fourteen million, six hundred thirty-five thousand, one hundred thirty-one".