140827813 has 24 divisors (see below), whose sum is σ = 174350232. Its totient is φ = 113025024.

The previous prime is 140827807. The next prime is 140827831. The reversal of 140827813 is 318728041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 119093569 + 21734244 = 10913^2 + 4662^2 .

It is not a de Polignac number, because 140827813 - 2¹⁷ = 140696741 is a prime.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140827853) 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 23 ways as a sum of consecutive naturals, for example, 243781 + ... + 244357.

It is an arithmetic number, because the mean of its divisors is an integer number (7264593).

Almost surely, 2^140827813 is an apocalyptic number.

It is an amenable number.

140827813 is a deficient number, since it is larger than the sum of its proper divisors (33522419).

140827813 is a wasteful number, since it uses less digits than its factorization.

140827813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901 (or 894 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 140827813 is about 11867.0894915308. The cubic root of 140827813 is about 520.2708315515.

The spelling of 140827813 in words is "one hundred forty million, eight hundred twenty-seven thousand, eight hundred thirteen".