140146522 has 8 divisors (see below), whose sum is σ = 214186356. Its totient is φ = 68751072.

The previous prime is 140146519. The next prime is 140146537. The reversal of 140146522 is 225641041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 111534721 + 28611801 = 10561^2 + 5349^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660963 + ... + 661174.

Almost surely, 2^140146522 is an apocalyptic number.

140146522 is a deficient number, since it is larger than the sum of its proper divisors (74039834).

140146522 is a wasteful number, since it uses less digits than its factorization.

140146522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322192.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 140146522 is about 11838.3496315998. The cubic root of 140146522 is about 519.4304933651.

Adding to 140146522 its reverse (225641041), we get a palindrome (365787563).

The spelling of 140146522 in words is "one hundred forty million, one hundred forty-six thousand, five hundred twenty-two".