140211523 has 2 divisors, whose sum is σ = 140211524. Its totient is φ = 140211522.

The previous prime is 140211521. The next prime is 140211541. The reversal of 140211523 is 325112041.

140211523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (325112041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140211523 - 2¹ = 140211521 is a prime.

Together with 140211521, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 140211523.

It is not a weakly prime, because it can be changed into another prime (140211521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70105761 + 70105762.

It is an arithmetic number, because the mean of its divisors is an integer number (70105762).

Almost surely, 2^140211523 is an apocalyptic number.

140211523 is a deficient number, since it is larger than the sum of its proper divisors (1).

140211523 is an equidigital number, since it uses as much as digits as its factorization.

140211523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 140211523 is about 11841.0946706797. The cubic root of 140211523 is about 519.5107861958.

Adding to 140211523 its reverse (325112041), we get a palindrome (465323564).

The spelling of 140211523 in words is "one hundred forty million, two hundred eleven thousand, five hundred twenty-three".