140868251 has 8 divisors (see below), whose sum is σ = 144471600. Its totient is φ = 137272960.

The previous prime is 140868229. The next prime is 140868253. The reversal of 140868251 is 152868041.

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

It is a cyclic number.

It is not a de Polignac number, because 140868251 - 2⁶ = 140868187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140868253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50255 + ... + 52983.

It is an arithmetic number, because the mean of its divisors is an integer number (18058950).

Almost surely, 2^140868251 is an apocalyptic number.

140868251 is a deficient number, since it is larger than the sum of its proper divisors (3603349).

140868251 is a wasteful number, since it uses less digits than its factorization.

140868251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4029.

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 140868251 is about 11868.7931568462. The cubic root of 140868251 is about 520.3206245056.

The spelling of 140868251 in words is "one hundred forty million, eight hundred sixty-eight thousand, two hundred fifty-one".