140697 has 14 divisors (see below), whose sum is σ = 212042. Its totient is φ = 93312.

The previous prime is 140689. The next prime is 140717. The reversal of 140697 is 796041.

It can be written as a sum of positive squares in only one way, i.e., 104976 + 35721 = 324^2 + 189^2 .

It is not a de Polignac number, because 140697 - 2^{3} = 140689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number *n* which added to its sum of digits gives 140697.

It is an inconsummate number, since it does not exist a number *n* which divided by its sum of digits gives 140697.

It is not an unprimeable number, because it can be changed into a prime (140617) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 633 + ... + 825.

2^{140697} is an apocalyptic number.

It is an amenable number.

140697 is a deficient number, since it is larger than the sum of its proper divisors (71345).

140697 is an frugal number, since it uses more digits than its factorization.

140697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 140697 is about 375.0959877151. The cubic root of 140697 is about 52.0109690864.

The spelling of 140697 in words is "one hundred forty thousand, six hundred ninety-seven".

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