140285505 has 16 divisors (see below), whose sum is σ = 224985600. Its totient is φ = 74642688.

The previous prime is 140285443. The next prime is 140285567. The reversal of 140285505 is 505582041.

It is an interprime number because it is at equal distance from previous prime (140285443) and next prime (140285567).

It is not a de Polignac number, because 140285505 - 2¹¹ = 140283457 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4305 + ... + 17294.

It is an arithmetic number, because the mean of its divisors is an integer number (14061600).

Almost surely, 2^140285505 is an apocalyptic number.

140285505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140285505 is a deficient number, since it is larger than the sum of its proper divisors (84700095).

140285505 is a wasteful number, since it uses less digits than its factorization.

140285505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22040.

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 140285505 is about 11844.2182097427. The cubic root of 140285505 is about 519.6021426650.

The spelling of 140285505 in words is "one hundred forty million, two hundred eighty-five thousand, five hundred five".