140304285 has 64 divisors (see below), whose sum is σ = 274959360. Its totient is φ = 67314240.

The previous prime is 140304271. The next prime is 140304293. The reversal of 140304285 is 582403041.

It is not a de Polignac number, because 140304285 - 2⁵ = 140304253 is a prime.

It is a super-2 number, since 2×140304285² = 39370584778722450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 63 ways as a sum of consecutive naturals, for example, 158454 + ... + 159336.

It is an arithmetic number, because the mean of its divisors is an integer number (4296240).

Almost surely, 2^140304285 is an apocalyptic number.

140304285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140304285 is a deficient number, since it is larger than the sum of its proper divisors (134655075).

140304285 is a wasteful number, since it uses less digits than its factorization.

140304285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015 (or 1009 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 140304285 is about 11845.0109750899. The cubic root of 140304285 is about 519.6253279847.

The spelling of 140304285 in words is "one hundred forty million, three hundred four thousand, two hundred eighty-five".