140310505 has 8 divisors (see below), whose sum is σ = 172288512. Its totient is φ = 109637808.

The previous prime is 140310479. The next prime is 140310509. The reversal of 140310505 is 505013041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140310505 - 2⁵ = 140310473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140310509) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 326089 + ... + 326518.

It is an arithmetic number, because the mean of its divisors is an integer number (21536064).

Almost surely, 2^140310505 is an apocalyptic number.

It is an amenable number.

140310505 is a deficient number, since it is larger than the sum of its proper divisors (31978007).

140310505 is an equidigital number, since it uses as much as digits as its factorization.

140310505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652655.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 140310505 is about 11845.2735299781. The cubic root of 140310505 is about 519.6330065855.

Adding to 140310505 its reverse (505013041), we get a palindrome (645323546).

The spelling of 140310505 in words is "one hundred forty million, three hundred ten thousand, five hundred five".