7127959145 has 4 divisors (see below), whose sum is σ = 8553550980. Its totient is φ = 5702367312.

The previous prime is 7127959099. The next prime is 7127959147. The reversal of 7127959145 is 5419597217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5419597217 = 6301 ⋅860117.

It can be written as a sum of positive squares in 2 ways, for example, as 945439504 + 6182519641 = 30748^2 + 78629^2 .

It is a cyclic number.

It is not a de Polignac number, because 7127959145 - 2¹⁰ = 7127958121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7127959093 and 7127959102.

It is not an unprimeable number, because it can be changed into a prime (7127959147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712795910 + ... + 712795919.

It is an arithmetic number, because the mean of its divisors is an integer number (2138387745).

Almost surely, 2^7127959145 is an apocalyptic number.

It is an amenable number.

7127959145 is a deficient number, since it is larger than the sum of its proper divisors (1425591835).

7127959145 is a wasteful number, since it uses less digits than its factorization.

7127959145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425591834.

The product of its digits is 793800, while the sum is 50.

The square root of 7127959145 is about 84427.2417232732. The cubic root of 7127959145 is about 1924.5169211158.

The spelling of 7127959145 in words is "seven billion, one hundred twenty-seven million, nine hundred fifty-nine thousand, one hundred forty-five".