140289777 has 12 divisors (see below), whose sum is σ = 202746180. Its totient is φ = 93477888.

The previous prime is 140289769. The next prime is 140289803. The reversal of 140289777 is 777982041.

It is a happy number.

140289777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 99380961 + 40908816 = 9969^2 + 6396^2 .

It is not a de Polignac number, because 140289777 - 2³ = 140289769 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (140289727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25749 + ... + 30717.

It is an arithmetic number, because the mean of its divisors is an integer number (16895515).

Almost surely, 2^140289777 is an apocalyptic number.

It is an amenable number.

140289777 is a deficient number, since it is larger than the sum of its proper divisors (62456403).

140289777 is a wasteful number, since it uses less digits than its factorization.

140289777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8112 (or 8109 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The square root of 140289777 is about 11844.3985495254. The cubic root of 140289777 is about 519.6074169515.

The spelling of 140289777 in words is "one hundred forty million, two hundred eighty-nine thousand, seven hundred seventy-seven".