830813131 has 4 divisors (see below), whose sum is σ = 840148200. Its totient is φ = 821478064.

The previous prime is 830813129. The next prime is 830813149. The reversal of 830813131 is 131318038.

830813131 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, and also an emirpimes, since its reverse is a distinct semiprime: 131318038 = 2 ⋅65659019.

It is a cyclic number.

It is not a de Polignac number, because 830813131 - 2¹ = 830813129 is a prime.

It is a super-2 number, since 2×830813131² = 1380500917284046322, which contains 22 as substring.

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 830813131.

It is not an unprimeable number, because it can be changed into a prime (830813111) 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, 4667401 + ... + 4667578.

It is an arithmetic number, because the mean of its divisors is an integer number (210037050).

Almost surely, 2^830813131 is an apocalyptic number.

830813131 is a deficient number, since it is larger than the sum of its proper divisors (9335069).

830813131 is an equidigital number, since it uses as much as digits as its factorization.

830813131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9335068.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 830813131 is about 28823.8292216700. The cubic root of 830813131 is about 940.0864304864.

The spelling of 830813131 in words is "eight hundred thirty million, eight hundred thirteen thousand, one hundred thirty-one".