140499851 has 4 divisors (see below), whose sum is σ = 147894600. Its totient is φ = 133105104.

The previous prime is 140499829. The next prime is 140499859. The reversal of 140499851 is 158994041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140499851 - 2¹⁴ = 140483467 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140499799 and 140499808.

It is not an unprimeable number, because it can be changed into a prime (140499859) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3697346 + ... + 3697383.

It is an arithmetic number, because the mean of its divisors is an integer number (36973650).

Almost surely, 2^140499851 is an apocalyptic number.

140499851 is a deficient number, since it is larger than the sum of its proper divisors (7394749).

140499851 is an equidigital number, since it uses as much as digits as its factorization.

140499851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7394748.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 140499851 is about 11853.2633059424. The cubic root of 140499851 is about 519.8666460311.

The spelling of 140499851 in words is "one hundred forty million, four hundred ninety-nine thousand, eight hundred fifty-one".