140042053 has 4 divisors (see below), whose sum is σ = 140815948. Its totient is φ = 139268160.

The previous prime is 140042047. The next prime is 140042057. The reversal of 140042053 is 350240041.

140042053 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 an emirpimes, since its reverse is a distinct semiprime: 350240041 = 359 ⋅975599.

It can be written as a sum of positive squares in 2 ways, for example, as 4133089 + 135908964 = 2033^2 + 11658^2 .

It is a cyclic number.

It is not a de Polignac number, because 140042053 - 2⁹ = 140041541 is a prime.

It is a super-2 number, since 2×140042053² = 39223553216909618, which contains 22 as substring.

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 140042053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140042057) 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, 386676 + ... + 387037.

It is an arithmetic number, because the mean of its divisors is an integer number (35203987).

Almost surely, 2^140042053 is an apocalyptic number.

It is an amenable number.

140042053 is a deficient number, since it is larger than the sum of its proper divisors (773895).

140042053 is an equidigital number, since it uses as much as digits as its factorization.

140042053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773894.

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

The square root of 140042053 is about 11833.9364963650. The cubic root of 140042053 is about 519.3013954457.

Adding to 140042053 its reverse (350240041), we get a palindrome (490282094).

The spelling of 140042053 in words is "one hundred forty million, forty-two thousand, fifty-three".