140330653 has 4 divisors (see below), whose sum is σ = 140354620. Its totient is φ = 140306688.

The previous prime is 140330627. The next prime is 140330657. The reversal of 140330653 is 356033041.

140330653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 119290084 + 21040569 = 10922^2 + 4587^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140330653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140330657) 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, 3283 + ... + 17071.

It is an arithmetic number, because the mean of its divisors is an integer number (35088655).

Almost surely, 2^140330653 is an apocalyptic number.

It is an amenable number.

140330653 is a deficient number, since it is larger than the sum of its proper divisors (23967).

140330653 is a wasteful number, since it uses less digits than its factorization.

140330653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23966.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 140330653 is about 11846.1239652470. The cubic root of 140330653 is about 519.6578777684.

Adding to 140330653 its reverse (356033041), we get a palindrome (496363694).

The spelling of 140330653 in words is "one hundred forty million, three hundred thirty thousand, six hundred fifty-three".