141231421 has 8 divisors (see below), whose sum is σ = 148105080. Its totient is φ = 134491392.

The previous prime is 141231413. The next prime is 141231449. The reversal of 141231421 is 124132141.

It can be written as a sum of positive squares in 4 ways, for example, as 48860100 + 92371321 = 6990^2 + 9611^2 .

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 141231421 - 2³ = 141231413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141231401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31240 + ... + 35473.

It is an arithmetic number, because the mean of its divisors is an integer number (18513135).

Almost surely, 2^141231421 is an apocalyptic number.

It is an amenable number.

141231421 is a deficient number, since it is larger than the sum of its proper divisors (6873659).

141231421 is an equidigital number, since it uses as much as digits as its factorization.

141231421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66815.

The product of its digits is 192, while the sum is 19.

The square root of 141231421 is about 11884.0826738962. The cubic root of 141231421 is about 520.7673839967.

Adding to 141231421 its reverse (124132141), we get a palindrome (265363562).

The spelling of 141231421 in words is "one hundred forty-one million, two hundred thirty-one thousand, four hundred twenty-one".