7145431056 has 120 divisors (see below), whose sum is σ = 21082174464. Its totient is φ = 2255869440.

The previous prime is 7145431049. The next prime is 7145431063. The reversal of 7145431056 is 6501345417.

7145431056 is a `hidden beast` number, since 7 + 1 + 4 + 543 + 105 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (7145431049) and next prime (7145431063).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 7145431056.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192780 + ... + 226836.

Almost surely, 2^7145431056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7145431056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10541087232).

7145431056 is an abundant number, since it is smaller than the sum of its proper divisors (13936743408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7145431056 is a wasteful number, since it uses less digits than its factorization.

7145431056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34149 (or 34140 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 7145431056 is about 84530.6515768097. The cubic root of 7145431056 is about 1926.0880838847.

The spelling of 7145431056 in words is "seven billion, one hundred forty-five million, four hundred thirty-one thousand, fifty-six".