140106523 has 2 divisors, whose sum is σ = 140106524. Its totient is φ = 140106522.

The previous prime is 140106521. The next prime is 140106583. The reversal of 140106523 is 325601041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140106523 - 2¹ = 140106521 is a prime.

Together with 140106521, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 140106494 and 140106503.

It is not a weakly prime, because it can be changed into another prime (140106521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70053261 + 70053262.

It is an arithmetic number, because the mean of its divisors is an integer number (70053262).

Almost surely, 2^140106523 is an apocalyptic number.

140106523 is a deficient number, since it is larger than the sum of its proper divisors (1).

140106523 is an equidigital number, since it uses as much as digits as its factorization.

140106523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 140106523 is about 11836.6601286005. The cubic root of 140106523 is about 519.3810720477.

Adding to 140106523 its reverse (325601041), we get a palindrome (465707564).

The spelling of 140106523 in words is "one hundred forty million, one hundred six thousand, five hundred twenty-three".