140611513 has 4 divisors (see below), whose sum is σ = 160698880. Its totient is φ = 120524148.

The previous prime is 140611511. The next prime is 140611519. The reversal of 140611513 is 315116041.

140611513 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140611513 - 2¹ = 140611511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140611511) 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, 10043673 + ... + 10043686.

It is an arithmetic number, because the mean of its divisors is an integer number (40174720).

Almost surely, 2^140611513 is an apocalyptic number.

It is an amenable number.

140611513 is a deficient number, since it is larger than the sum of its proper divisors (20087367).

140611513 is an equidigital number, since it uses as much as digits as its factorization.

140611513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20087366.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 140611513 is about 11857.9725501453. The cubic root of 140611513 is about 520.0043305852.

Adding to 140611513 its reverse (315116041), we get a palindrome (455727554).

The spelling of 140611513 in words is "one hundred forty million, six hundred eleven thousand, five hundred thirteen".