140767785 has 12 divisors (see below), whose sum is σ = 243997572. Its totient is φ = 75076128.

The previous prime is 140767777. The next prime is 140767811. The reversal of 140767785 is 587767041.

It can be written as a sum of positive squares in 2 ways, for example, as 70157376 + 70610409 = 8376^2 + 8403^2 .

It is not a de Polignac number, because 140767785 - 2³ = 140767777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 3128173 = 140767785 / (1 + 4 + 0 + 7 + 6 + 7 + 7 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 140767785.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1564042 + ... + 1564131.

It is an arithmetic number, because the mean of its divisors is an integer number (20333131).

Almost surely, 2^140767785 is an apocalyptic number.

140767785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140767785 is a deficient number, since it is larger than the sum of its proper divisors (103229787).

140767785 is a wasteful number, since it uses less digits than its factorization.

140767785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3128184 (or 3128181 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The square root of 140767785 is about 11864.5600424120. The cubic root of 140767785 is about 520.1968990537.

The spelling of 140767785 in words is "one hundred forty million, seven hundred sixty-seven thousand, seven hundred eighty-five".