140155541013245 has 4 divisors (see below), whose sum is σ = 168186649215900. Its totient is φ = 112124432810592.

The previous prime is 140155541013209. The next prime is 140155541013253. The reversal of 140155541013245 is 542310145551041.

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 80154436315801 + 60001104697444 = 8952901^2 + 7746038^2 .

It is a cyclic number.

It is not a de Polignac number, because 140155541013245 - 2²⁰ = 140155539964669 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14015554101320 + ... + 14015554101329.

It is an arithmetic number, because the mean of its divisors is an integer number (42046662303975).

Almost surely, 2^{140155541013245} is an apocalyptic number.

It is an amenable number.

140155541013245 is a deficient number, since it is larger than the sum of its proper divisors (28031108202655).

140155541013245 is an equidigital number, since it uses as much as digits as its factorization.

140155541013245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28031108202654.

The product of its (nonzero) digits is 240000, while the sum is 41.

Adding to 140155541013245 its reverse (542310145551041), we get a palindrome (682465686564286).

The spelling of 140155541013245 in words is "one hundred forty trillion, one hundred fifty-five billion, five hundred forty-one million, thirteen thousand, two hundred forty-five".