140166297 has 6 divisors (see below), whose sum is σ = 202462442. Its totient is φ = 93444192.

The previous prime is 140166293. The next prime is 140166311. The reversal of 140166297 is 792661041.

140166297 is a `hidden beast` number, since 14 + 0 + 16 + 629 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 104775696 + 35390601 = 10236^2 + 5949^2 .

It is not a de Polignac number, because 140166297 - 2² = 140166293 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140166293) 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, 7787008 + ... + 7787025.

Almost surely, 2^140166297 is an apocalyptic number.

It is an amenable number.

140166297 is a deficient number, since it is larger than the sum of its proper divisors (62296145).

140166297 is a wasteful number, since it uses less digits than its factorization.

140166297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15574039 (or 15574036 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 140166297 is about 11839.1848114640. The cubic root of 140166297 is about 519.4549231660.

The spelling of 140166297 in words is "one hundred forty million, one hundred sixty-six thousand, two hundred ninety-seven".