7146223146 has 12 divisors (see below), whose sum is σ = 15483483522. Its totient is φ = 2382074376.

The previous prime is 7146223129. The next prime is 7146223151. The reversal of 7146223146 is 6413226417.

7146223146 is a `hidden beast` number, since 7 + 14 + 622 + 3 + 14 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6887174121 + 259049025 = 82989^2 + 16095^2 .

It is a super-2 number, since 2×7146223146² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7146223146.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 198506181 + ... + 198506216.

Almost surely, 2^7146223146 is an apocalyptic number.

7146223146 is an abundant number, since it is smaller than the sum of its proper divisors (8337260376).

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

7146223146 is a wasteful number, since it uses less digits than its factorization.

7146223146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397012405 (or 397012402 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 7146223146 is about 84535.3366705309. The cubic root of 7146223146 is about 1926.1592519140.

The spelling of 7146223146 in words is "seven billion, one hundred forty-six million, two hundred twenty-three thousand, one hundred forty-six".