140997307 has 12 divisors (see below), whose sum is σ = 156027088. Its totient is φ = 127314000.

The previous prime is 140997293. The next prime is 140997317. The reversal of 140997307 is 703799041.

It is not a de Polignac number, because 140997307 - 2¹⁹ = 140473019 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 140997307.

It is not an unprimeable number, because it can be changed into a prime (140997317) 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, 14413 + ... + 22129.

Almost surely, 2^140997307 is an apocalyptic number.

140997307 is a deficient number, since it is larger than the sum of its proper divisors (15029781).

140997307 is a wasteful number, since it uses less digits than its factorization.

140997307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7890 (or 7879 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 140997307 is about 11874.2286907403. The cubic root of 140997307 is about 520.4794727010.

The spelling of 140997307 in words is "one hundred forty million, nine hundred ninety-seven thousand, three hundred seven".