140525153653 has 4 divisors (see below), whose sum is σ = 148791339180. Its totient is φ = 132258968128.

The previous prime is 140525153621. The next prime is 140525153677. The reversal of 140525153653 is 356351525041.

It is a happy number.

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 106548710724 + 33976442929 = 326418^2 + 184327^2 .

It is a cyclic number.

It is not a de Polignac number, because 140525153653 - 2⁵ = 140525153621 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 (140525153603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4133092738 + ... + 4133092771.

It is an arithmetic number, because the mean of its divisors is an integer number (37197834795).

Almost surely, 2^140525153653 is an apocalyptic number.

It is an amenable number.

140525153653 is a deficient number, since it is larger than the sum of its proper divisors (8266185527).

140525153653 is an equidigital number, since it uses as much as digits as its factorization.

140525153653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8266185526.

The product of its (nonzero) digits is 270000, while the sum is 40.

Adding to 140525153653 its reverse (356351525041), we get a palindrome (496876678694).

The spelling of 140525153653 in words is "one hundred forty billion, five hundred twenty-five million, one hundred fifty-three thousand, six hundred fifty-three".