8146129855 has 8 divisors (see below), whose sum is σ = 9783018432. Its totient is φ = 6511795488.

The previous prime is 8146129843. The next prime is 8146129867. The reversal of 8146129855 is 5589216418.

It is an interprime number because it is at equal distance from previous prime (8146129843) and next prime (8146129867).

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

It is a cyclic number.

It is not a de Polignac number, because 8146129855 - 2⁷ = 8146129727 is a prime.

It is a super-2 number, since 2×8146129855² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8146129799 and 8146129808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631527 + ... + 644296.

It is an arithmetic number, because the mean of its divisors is an integer number (1222877304).

Almost surely, 2^8146129855 is an apocalyptic number.

8146129855 is a deficient number, since it is larger than the sum of its proper divisors (1636888577).

8146129855 is a wasteful number, since it uses less digits than its factorization.

8146129855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277105.

The product of its digits is 691200, while the sum is 49.

The square root of 8146129855 is about 90255.9131303872. The cubic root of 8146129855 is about 2012.1040856918.

The spelling of 8146129855 in words is "eight billion, one hundred forty-six million, one hundred twenty-nine thousand, eight hundred fifty-five".