140405495 has 4 divisors (see below), whose sum is σ = 168486600. Its totient is φ = 112324392.

The previous prime is 140405471. The next prime is 140405513. The reversal of 140405495 is 594504041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140405495 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 14040545 + ... + 14040554.

It is an arithmetic number, because the mean of its divisors is an integer number (42121650).

Almost surely, 2^140405495 is an apocalyptic number.

140405495 is a deficient number, since it is larger than the sum of its proper divisors (28081105).

140405495 is an equidigital number, since it uses as much as digits as its factorization.

140405495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28081104.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 140405495 is about 11849.2824677277. The cubic root of 140405495 is about 519.7502437199.

The spelling of 140405495 in words is "one hundred forty million, four hundred five thousand, four hundred ninety-five".