140505510353 has 4 divisors (see below), whose sum is σ = 151313626548. Its totient is φ = 129697394160.

The previous prime is 140505510337. The next prime is 140505510373. The reversal of 140505510353 is 353015505041.

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 41146905409 + 99358604944 = 202847^2 + 315212^2 .

It is a cyclic number.

It is not a de Polignac number, because 140505510353 - 2⁴ = 140505510337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140505510373) 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, 5404058078 + ... + 5404058103.

It is an arithmetic number, because the mean of its divisors is an integer number (37828406637).

Almost surely, 2^140505510353 is an apocalyptic number.

140505510353 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

140505510353 is a deficient number, since it is larger than the sum of its proper divisors (10808116195).

140505510353 is a wasteful number, since it uses less digits than its factorization.

140505510353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10808116194.

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 140505510353 in words is "one hundred forty billion, five hundred five million, five hundred ten thousand, three hundred fifty-three".