7142880945 has 8 divisors (see below), whose sum is σ = 11428609536. Its totient is φ = 3809536496.

The previous prime is 7142880907. The next prime is 7142880971. The reversal of 7142880945 is 5490882417.

It is a happy number.

7142880945 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7142880945 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7142880894 and 7142880903.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238096017 + ... + 238096046.

It is an arithmetic number, because the mean of its divisors is an integer number (1428576192).

Almost surely, 2^7142880945 is an apocalyptic number.

It is an amenable number.

7142880945 is a deficient number, since it is larger than the sum of its proper divisors (4285728591).

7142880945 is a wasteful number, since it uses less digits than its factorization.

7142880945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476192071.

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 7142880945 is about 84515.5662881105. The cubic root of 7142880945 is about 1925.8589247293.

The spelling of 7142880945 in words is "seven billion, one hundred forty-two million, eight hundred eighty thousand, nine hundred forty-five".