140015197 has 6 divisors (see below), whose sum is σ = 162874878. Its totient is φ = 120012984.

The previous prime is 140015149. The next prime is 140015243. The reversal of 140015197 is 791510041.

140015197 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 only one way, i.e., 138791961 + 1223236 = 11781^2 + 1106^2 .

It is not a de Polignac number, because 140015197 - 2¹⁹ = 139490909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140015297) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1428678 + ... + 1428775.

It is an arithmetic number, because the mean of its divisors is an integer number (27145813).

Almost surely, 2^140015197 is an apocalyptic number.

It is an amenable number.

140015197 is a deficient number, since it is larger than the sum of its proper divisors (22859681).

140015197 is an equidigital number, since it uses as much as digits as its factorization.

140015197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857467 (or 2857460 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 140015197 is about 11832.8017392332. The cubic root of 140015197 is about 519.2681976798.

The spelling of 140015197 in words is "one hundred forty million, fifteen thousand, one hundred ninety-seven".