140730145 has 8 divisors (see below), whose sum is σ = 170455104. Its totient is φ = 111531504.

The previous prime is 140730143. The next prime is 140730179. The reversal of 140730145 is 541037041.

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

It is a cyclic number.

It is not a de Polignac number, because 140730145 - 2¹ = 140730143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140730143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130989 + ... + 132058.

It is an arithmetic number, because the mean of its divisors is an integer number (21306888).

Almost surely, 2^140730145 is an apocalyptic number.

It is an amenable number.

140730145 is a deficient number, since it is larger than the sum of its proper divisors (29724959).

140730145 is a wasteful number, since it uses less digits than its factorization.

140730145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263159.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 140730145 is about 11862.9736997095. The cubic root of 140730145 is about 520.1505296453.

Adding to 140730145 its reverse (541037041), we get a palindrome (681767186).

The spelling of 140730145 in words is "one hundred forty million, seven hundred thirty thousand, one hundred forty-five".