140395305 has 16 divisors (see below), whose sum is σ = 225319104. Its totient is φ = 74648640.

The previous prime is 140395267. The next prime is 140395319. The reversal of 140395305 is 503593041.

It is not a de Polignac number, because 140395305 - 2⁸ = 140395049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9174 + ... + 19103.

It is an arithmetic number, because the mean of its divisors is an integer number (14082444).

Almost surely, 2^140395305 is an apocalyptic number.

140395305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140395305 is a deficient number, since it is larger than the sum of its proper divisors (84923799).

140395305 is a wasteful number, since it uses less digits than its factorization.

140395305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28616.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 140395305 is about 11848.8524760839. The cubic root of 140395305 is about 519.7376697032.

The spelling of 140395305 in words is "one hundred forty million, three hundred ninety-five thousand, three hundred five".