140422707787 has 4 divisors (see below), whose sum is σ = 140425094080. Its totient is φ = 140420321496.

The previous prime is 140422707749. The next prime is 140422707797. The reversal of 140422707787 is 787707224041.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140422707787 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140422707787.

It is not an unprimeable number, because it can be changed into a prime (140422707727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1102587 + ... + 1223332.

It is an arithmetic number, because the mean of its divisors is an integer number (35106273520).

Almost surely, 2^140422707787 is an apocalyptic number.

140422707787 is a deficient number, since it is larger than the sum of its proper divisors (2386293).

140422707787 is an equidigital number, since it uses as much as digits as its factorization.

140422707787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2386292.

The product of its (nonzero) digits is 1229312, while the sum is 49.

The spelling of 140422707787 in words is "one hundred forty billion, four hundred twenty-two million, seven hundred seven thousand, seven hundred eighty-seven".