140321727 has 40 divisors (see below), whose sum is σ = 258002976. Its totient is φ = 74011968.

The previous prime is 140321719. The next prime is 140321747. The reversal of 140321727 is 727123041.

It is a happy number.

It is not a de Polignac number, because 140321727 - 2³ = 140321719 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 140321727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140321747) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2148 + ... + 16889.

Almost surely, 2^140321727 is an apocalyptic number.

140321727 is a deficient number, since it is larger than the sum of its proper divisors (117681249).

140321727 is a wasteful number, since it uses less digits than its factorization.

140321727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19069 (or 19060 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 140321727 is about 11845.7472115523. The cubic root of 140321727 is about 519.6468595899.

Adding to 140321727 its reverse (727123041), we get a palindrome (867444768).

The spelling of 140321727 in words is "one hundred forty million, three hundred twenty-one thousand, seven hundred twenty-seven".