140256502 has 8 divisors (see below), whose sum is σ = 210438216. Its totient is φ = 70110432.

The previous prime is 140256491. The next prime is 140256503. The reversal of 140256502 is 205652041.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140256503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5758 + ... + 17710.

It is an arithmetic number, because the mean of its divisors is an integer number (26304777).

Almost surely, 2^140256502 is an apocalyptic number.

140256502 is a deficient number, since it is larger than the sum of its proper divisors (70181714).

140256502 is a wasteful number, since it uses less digits than its factorization.

140256502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17822.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 140256502 is about 11842.9937938006. The cubic root of 140256502 is about 519.5663322188.

The spelling of 140256502 in words is "one hundred forty million, two hundred fifty-six thousand, five hundred two".