140730053 has 4 divisors (see below), whose sum is σ = 141674700. Its totient is φ = 139785408.

The previous prime is 140730043. The next prime is 140730089. The reversal of 140730053 is 350037041.

It is a happy number.

140730053 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.

It can be written as a sum of positive squares in 2 ways, for example, as 61199329 + 79530724 = 7823^2 + 8918^2 .

It is a cyclic number.

It is not a de Polignac number, because 140730053 - 2²⁴ = 123952837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140730043) 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, 472100 + ... + 472397.

It is an arithmetic number, because the mean of its divisors is an integer number (35418675).

Almost surely, 2^140730053 is an apocalyptic number.

It is an amenable number.

140730053 is a deficient number, since it is larger than the sum of its proper divisors (944647).

140730053 is an equidigital number, since it uses as much as digits as its factorization.

140730053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944646.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 140730053 is about 11862.9698220977. The cubic root of 140730053 is about 520.1504162987.

Adding to 140730053 its reverse (350037041), we get a palindrome (490767094).

The spelling of 140730053 in words is "one hundred forty million, seven hundred thirty thousand, fifty-three".