140201421 has 8 divisors (see below), whose sum is σ = 186990144. Its totient is φ = 93440160.

The previous prime is 140201417. The next prime is 140201429. The reversal of 140201421 is 124102041.

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

It is not a de Polignac number, because 140201421 - 2² = 140201417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140201421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140201429) 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, 15001 + ... + 22481.

It is an arithmetic number, because the mean of its divisors is an integer number (23373768).

Almost surely, 2^140201421 is an apocalyptic number.

It is an amenable number.

140201421 is a deficient number, since it is larger than the sum of its proper divisors (46788723).

140201421 is an equidigital number, since it uses as much as digits as its factorization.

140201421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13731.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 140201421 is about 11840.6680977046. The cubic root of 140201421 is about 519.4983092755.

Adding to 140201421 its reverse (124102041), we get a palindrome (264303462).

The spelling of 140201421 in words is "one hundred forty million, two hundred one thousand, four hundred twenty-one".