140146730 has 8 divisors (see below), whose sum is σ = 252264132. Its totient is φ = 56058688.

The previous prime is 140146729. The next prime is 140146739. The reversal of 140146730 is 37641041.

140146730 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 127622209 + 12524521 = 11297^2 + 3539^2 .

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

It is a super-2 number, since 2×140146730² = 39282211859385800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140146730.

It is not an unprimeable number, because it can be changed into a prime (140146739) 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, 7007327 + ... + 7007346.

Almost surely, 2^140146730 is an apocalyptic number.

140146730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140146730 is a deficient number, since it is larger than the sum of its proper divisors (112117402).

140146730 is a wasteful number, since it uses less digits than its factorization.

140146730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14014680.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 140146730 is about 11838.3584166049. The cubic root of 140146730 is about 519.4307503378.

Adding to 140146730 its reverse (37641041), we get a palindrome (177787771).

The spelling of 140146730 in words is "one hundred forty million, one hundred forty-six thousand, seven hundred thirty".