140164897 has 2 divisors, whose sum is σ = 140164898. Its totient is φ = 140164896.

The previous prime is 140164883. The next prime is 140164939. The reversal of 140164897 is 798461041.

140164897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100020001 + 40144896 = 10001^2 + 6336^2 .

It is a cyclic number.

It is not a de Polignac number, because 140164897 - 2¹⁵ = 140132129 is a prime.

It is not a weakly prime, because it can be changed into another prime (140164597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70082448 + 70082449.

It is an arithmetic number, because the mean of its divisors is an integer number (70082449).

Almost surely, 2^140164897 is an apocalyptic number.

It is an amenable number.

140164897 is a deficient number, since it is larger than the sum of its proper divisors (1).

140164897 is an equidigital number, since it uses as much as digits as its factorization.

140164897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 140164897 is about 11839.1256856239. The cubic root of 140164897 is about 519.4531936982.

The spelling of 140164897 in words is "one hundred forty million, one hundred sixty-four thousand, eight hundred ninety-seven".