140445470306 has 4 divisors (see below), whose sum is σ = 210668205462. Its totient is φ = 70222735152.

The previous prime is 140445470281. The next prime is 140445470309. The reversal of 140445470306 is 603074544041.

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

It can be written as a sum of positive squares in only one way, i.e., 102025942225 + 38419528081 = 319415^2 + 196009^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 140445470306.

It is not an unprimeable number, because it can be changed into a prime (140445470309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35111367575 + ... + 35111367578.

Almost surely, 2^140445470306 is an apocalyptic number.

140445470306 is a deficient number, since it is larger than the sum of its proper divisors (70222735156).

140445470306 is an equidigital number, since it uses as much as digits as its factorization.

140445470306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70222735155.

The product of its (nonzero) digits is 161280, while the sum is 38.

The spelling of 140445470306 in words is "one hundred forty billion, four hundred forty-five million, four hundred seventy thousand, three hundred six".