140321501 has 8 divisors (see below), whose sum is σ = 144925920. Its totient is φ = 135759888.

The previous prime is 140321491. The next prime is 140321507. The reversal of 140321501 is 105123041.

140321501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140321501 - 2⁶ = 140321437 is a prime.

It is a super-3 number, since 3×140321501³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140321501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140321507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3971 + ... + 17216.

It is an arithmetic number, because the mean of its divisors is an integer number (18115740).

Almost surely, 2^140321501 is an apocalyptic number.

It is an amenable number.

140321501 is a deficient number, since it is larger than the sum of its proper divisors (4604419).

140321501 is a wasteful number, since it uses less digits than its factorization.

140321501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21403.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 140321501 is about 11845.7376722600. The cubic root of 140321501 is about 519.6465806114.

Adding to 140321501 its reverse (105123041), we get a palindrome (245444542).

The spelling of 140321501 in words is "one hundred forty million, three hundred twenty-one thousand, five hundred one".