140256307 has 16 divisors (see below), whose sum is σ = 157462272. Its totient is φ = 124277760.

The previous prime is 140256301. The next prime is 140256313. The reversal of 140256307 is 703652041.

It is an interprime number because it is at equal distance from previous prime (140256301) and next prime (140256313).

It is not a de Polignac number, because 140256307 - 2³ = 140256299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140256301) by changing a digit.

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, 15903 + ... + 23095.

It is an arithmetic number, because the mean of its divisors is an integer number (9841392).

Almost surely, 2^140256307 is an apocalyptic number.

140256307 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

140256307 is a deficient number, since it is larger than the sum of its proper divisors (17205965).

140256307 is a wasteful number, since it uses less digits than its factorization.

140256307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7278.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 140256307 is about 11842.9855610821. The cubic root of 140256307 is about 519.5660914326.

The spelling of 140256307 in words is "one hundred forty million, two hundred fifty-six thousand, three hundred seven".