140784827 has 4 divisors (see below), whose sum is σ = 140812920. Its totient is φ = 140756736.

The previous prime is 140784811. The next prime is 140784887. The reversal of 140784827 is 728487041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 728487041 = 2797 ⋅260453.

It is a cyclic number.

It is not a de Polignac number, because 140784827 - 2⁴ = 140784811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140784887) 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, 4253 + ... + 17310.

It is an arithmetic number, because the mean of its divisors is an integer number (35203230).

Almost surely, 2^140784827 is an apocalyptic number.

140784827 is a deficient number, since it is larger than the sum of its proper divisors (28093).

140784827 is an equidigital number, since it uses as much as digits as its factorization.

140784827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28092.

The product of its (nonzero) digits is 100352, while the sum is 41.

The square root of 140784827 is about 11865.2782099705. The cubic root of 140784827 is about 520.2178906885.

The spelling of 140784827 in words is "one hundred forty million, seven hundred eighty-four thousand, eight hundred twenty-seven".