8457222146 has 16 divisors (see below), whose sum is σ = 13012109880. Its totient is φ = 4121124480.

The previous prime is 8457222143. The next prime is 8457222161. The reversal of 8457222146 is 6412227548.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7480347121 + 976875025 = 86489^2 + 31255^2 .

It is not an unprimeable number, because it can be changed into a prime (8457222143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304691 + ... + 331286.

Almost surely, 2^8457222146 is an apocalyptic number.

8457222146 is a deficient number, since it is larger than the sum of its proper divisors (4554887734).

8457222146 is a wasteful number, since it uses less digits than its factorization.

8457222146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636149.

The product of its digits is 215040, while the sum is 41.

The square root of 8457222146 is about 91963.1564595300. The cubic root of 8457222146 is about 2037.3981749256.

The spelling of 8457222146 in words is "eight billion, four hundred fifty-seven million, two hundred twenty-two thousand, one hundred forty-six".