7227730145 has 16 divisors (see below), whose sum is σ = 8801333760. Its totient is φ = 5697117504.

The previous prime is 7227730099. The next prime is 7227730157. The reversal of 7227730145 is 5410377227.

It is a cyclic number.

It is not a de Polignac number, because 7227730145 - 2¹² = 7227726049 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7227730099 and 7227730108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173579 + ... + 211151.

It is an arithmetic number, because the mean of its divisors is an integer number (550083360).

Almost surely, 2^7227730145 is an apocalyptic number.

It is an amenable number.

7227730145 is a deficient number, since it is larger than the sum of its proper divisors (1573603615).

7227730145 is a wasteful number, since it uses less digits than its factorization.

7227730145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38144.

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 7227730145 is about 85016.0581596206. The cubic root of 7227730145 is about 1933.4545898152.

The spelling of 7227730145 in words is "seven billion, two hundred twenty-seven million, seven hundred thirty thousand, one hundred forty-five".