140669201 has 4 divisors (see below), whose sum is σ = 140707812. Its totient is φ = 140630592.

The previous prime is 140669189. The next prime is 140669231. The reversal of 140669201 is 102966041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19140625 + 121528576 = 4375^2 + 11024^2 .

It is a cyclic number.

It is not a de Polignac number, because 140669201 - 2²⁶ = 73560337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140669231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13196 + ... + 21341.

It is an arithmetic number, because the mean of its divisors is an integer number (35176953).

Almost surely, 2^140669201 is an apocalyptic number.

It is an amenable number.

140669201 is a deficient number, since it is larger than the sum of its proper divisors (38611).

140669201 is an equidigital number, since it uses as much as digits as its factorization.

140669201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38610.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 140669201 is about 11860.4047570056. The cubic root of 140669201 is about 520.0754340763.

It can be divided in two parts, 1406 and 69201, that added together give a palindrome (70607).

The spelling of 140669201 in words is "one hundred forty million, six hundred sixty-nine thousand, two hundred one".