231214413 has 4 divisors (see below), whose sum is σ = 308285888. Its totient is φ = 154142940.

The previous prime is 231214391. The next prime is 231214421. The reversal of 231214413 is 314412132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 231214413 - 2⁵ = 231214381 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231214413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231214493) 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 3 ways as a sum of consecutive naturals, for example, 38535733 + ... + 38535738.

It is an arithmetic number, because the mean of its divisors is an integer number (77071472).

Almost surely, 2^231214413 is an apocalyptic number.

It is an amenable number.

231214413 is a deficient number, since it is larger than the sum of its proper divisors (77071475).

231214413 is an equidigital number, since it uses as much as digits as its factorization.

231214413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77071474.

The product of its digits is 576, while the sum is 21.

The square root of 231214413 is about 15205.7361873735. The cubic root of 231214413 is about 613.7690256158.

Adding to 231214413 its reverse (314412132), we get a palindrome (545626545).

The spelling of 231214413 in words is "two hundred thirty-one million, two hundred fourteen thousand, four hundred thirteen".