8130434 has 8 divisors (see below), whose sum is σ = 13133820. Its totient is φ = 3752496.

The previous prime is 8130427. The next prime is 8130439. The reversal of 8130434 is 4340318.

It can be written as a sum of positive squares in 2 ways, for example, as 7038409 + 1092025 = 2653^2 + 1045^2 .

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

It is a super-2 number, since 2×8130434² = 132207914056712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8130439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156329 + ... + 156380.

Almost surely, 2^8130434 is an apocalyptic number.

8130434 is a deficient number, since it is larger than the sum of its proper divisors (5003386).

8130434 is a wasteful number, since it uses less digits than its factorization.

8130434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312724.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 8130434 is about 2851.3915900837. The cubic root of 8130434 is about 201.0810956316.

The spelling of 8130434 in words is "eight million, one hundred thirty thousand, four hundred thirty-four".