140132421 has 24 divisors (see below), whose sum is σ = 237802656. Its totient is φ = 78395040.

The previous prime is 140132401. The next prime is 140132453. The reversal of 140132421 is 124231041.

It is not a de Polignac number, because 140132421 - 2¹⁴ = 140116037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140132394 and 140132403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140132401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53155 + ... + 55728.

It is an arithmetic number, because the mean of its divisors is an integer number (9908444).

Almost surely, 2^140132421 is an apocalyptic number.

140132421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

140132421 is a deficient number, since it is larger than the sum of its proper divisors (97670235).

140132421 is a wasteful number, since it uses less digits than its factorization.

140132421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108913 (or 108910 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 140132421 is about 11837.7540521841. The cubic root of 140132421 is about 519.4130717529.

Adding to 140132421 its reverse (124231041), we get a palindrome (264363462).

The spelling of 140132421 in words is "one hundred forty million, one hundred thirty-two thousand, four hundred twenty-one".