140240053 has 4 divisors (see below), whose sum is σ = 140390028. Its totient is φ = 140090080.

The previous prime is 140240041. The next prime is 140240077. The reversal of 140240053 is 350042041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 350042041 = 47 ⋅7447703.

It can be written as a sum of positive squares in 2 ways, for example, as 58644964 + 81595089 = 7658^2 + 9033^2 .

It is a cyclic number.

It is not a de Polignac number, because 140240053 - 2¹⁷ = 140108981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140240053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140240033) 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, 73576 + ... + 75457.

It is an arithmetic number, because the mean of its divisors is an integer number (35097507).

Almost surely, 2^140240053 is an apocalyptic number.

It is an amenable number.

140240053 is a deficient number, since it is larger than the sum of its proper divisors (149975).

140240053 is an equidigital number, since it uses as much as digits as its factorization.

140240053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149974.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 140240053 is about 11842.2993122113. The cubic root of 140240053 is about 519.5460201938.

Adding to 140240053 its reverse (350042041), we get a palindrome (490282094).

The spelling of 140240053 in words is "one hundred forty million, two hundred forty thousand, fifty-three".