140421335631 has 8 divisors (see below), whose sum is σ = 188885336880. Its totient is φ = 92785779072.

The previous prime is 140421335627. The next prime is 140421335689. The reversal of 140421335631 is 136533124041.

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

It is not a de Polignac number, because 140421335631 - 2² = 140421335627 is a prime.

It is a super-2 number, since 2×140421335631² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140421335592 and 140421335601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140421335731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207110776 + ... + 207111453.

It is an arithmetic number, because the mean of its divisors is an integer number (23610667110).

Almost surely, 2^140421335631 is an apocalyptic number.

140421335631 is a deficient number, since it is larger than the sum of its proper divisors (48464001249).

140421335631 is a wasteful number, since it uses less digits than its factorization.

140421335631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414222345.

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 140421335631 its reverse (136533124041), we get a palindrome (276954459672).

The spelling of 140421335631 in words is "one hundred forty billion, four hundred twenty-one million, three hundred thirty-five thousand, six hundred thirty-one".