140146634 has 8 divisors (see below), whose sum is σ = 210270180. Its totient is φ = 70056576.

The previous prime is 140146627. The next prime is 140146637. The reversal of 140146634 is 436641041.

It can be written as a sum of positive squares in 2 ways, for example, as 128890609 + 11256025 = 11353^2 + 3355^2 .

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

It is a super-3 number, since 3×140146634³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140146597 and 140146606.

It is not an unprimeable number, because it can be changed into a prime (140146637) 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, 12512 + ... + 20900.

Almost surely, 2^140146634 is an apocalyptic number.

140146634 is a deficient number, since it is larger than the sum of its proper divisors (70123546).

140146634 is an equidigital number, since it uses as much as digits as its factorization.

140146634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16744.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 140146634 is about 11838.3543619880. The cubic root of 140146634 is about 519.4306317350.

Adding to 140146634 its reverse (436641041), we get a palindrome (576787675).

The spelling of 140146634 in words is "one hundred forty million, one hundred forty-six thousand, six hundred thirty-four".