8145484042 has 4 divisors (see below), whose sum is σ = 12218226066. Its totient is φ = 4072742020.

The previous prime is 8145484031. The next prime is 8145484043. The reversal of 8145484042 is 2404845418.

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

It can be written as a sum of positive squares in only one way, i.e., 7407872761 + 737611281 = 86069^2 + 27159^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8145483986 and 8145484004.

It is not an unprimeable number, because it can be changed into a prime (8145484043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2036371009 + ... + 2036371012.

Almost surely, 2^8145484042 is an apocalyptic number.

8145484042 is a deficient number, since it is larger than the sum of its proper divisors (4072742024).

8145484042 is a wasteful number, since it uses less digits than its factorization.

8145484042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4072742023.

The product of its (nonzero) digits is 163840, while the sum is 40.

The square root of 8145484042 is about 90252.3353825263. The cubic root of 8145484042 is about 2012.0509120850.

The spelling of 8145484042 in words is "eight billion, one hundred forty-five million, four hundred eighty-four thousand, forty-two".