140146230513 has 4 divisors (see below), whose sum is σ = 186861640688. Its totient is φ = 93430820340.

The previous prime is 140146230491. The next prime is 140146230527. The reversal of 140146230513 is 315032641041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 315032641041 = 3 ⋅105010880347.

It is not a de Polignac number, because 140146230513 - 2⁶ = 140146230449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140146230563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23357705083 + ... + 23357705088.

It is an arithmetic number, because the mean of its divisors is an integer number (46715410172).

Almost surely, 2^140146230513 is an apocalyptic number.

It is an amenable number.

140146230513 is a deficient number, since it is larger than the sum of its proper divisors (46715410175).

140146230513 is an equidigital number, since it uses as much as digits as its factorization.

140146230513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46715410174.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 140146230513 its reverse (315032641041), we get a palindrome (455178871554).

The spelling of 140146230513 in words is "one hundred forty billion, one hundred forty-six million, two hundred thirty thousand, five hundred thirteen".