231420141 has 6 divisors (see below), whose sum is σ = 334273550. Its totient is φ = 154280088.

The previous prime is 231420139. The next prime is 231420173. The reversal of 231420141 is 141024132.

231420141 is a `hidden beast` number, since 231 + 420 + 14 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 223382916 + 8037225 = 14946^2 + 2835^2 .

It is not a de Polignac number, because 231420141 - 2¹ = 231420139 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 (231420121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12856666 + ... + 12856683.

Almost surely, 2^231420141 is an apocalyptic number.

It is an amenable number.

231420141 is a deficient number, since it is larger than the sum of its proper divisors (102853409).

231420141 is a wasteful number, since it uses less digits than its factorization.

231420141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25713355 (or 25713352 counting only the distinct ones).

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

The square root of 231420141 is about 15212.4994987675. The cubic root of 231420141 is about 613.9510097183.

Adding to 231420141 its reverse (141024132), we get a palindrome (372444273).

The spelling of 231420141 in words is "two hundred thirty-one million, four hundred twenty thousand, one hundred forty-one".