140405527 has 2 divisors, whose sum is σ = 140405528. Its totient is φ = 140405526.

The previous prime is 140405513. The next prime is 140405537. The reversal of 140405527 is 725504041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140405527 - 2⁷ = 140405399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140405495 and 140405504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140405537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70202763 + 70202764.

It is an arithmetic number, because the mean of its divisors is an integer number (70202764).

Almost surely, 2^140405527 is an apocalyptic number.

140405527 is a deficient number, since it is larger than the sum of its proper divisors (1).

140405527 is an equidigital number, since it uses as much as digits as its factorization.

140405527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 140405527 is about 11849.2838180204. The cubic root of 140405527 is about 519.7502832056.

Adding to 140405527 its reverse (725504041), we get a palindrome (865909568).

The spelling of 140405527 in words is "one hundred forty million, four hundred five thousand, five hundred twenty-seven".