214321831 has 2 divisors, whose sum is σ = 214321832. Its totient is φ = 214321830.

The previous prime is 214321819. The next prime is 214321901. The reversal of 214321831 is 138123412.

It is a happy number.

214321831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 214321831 - 2²¹ = 212224679 is a prime.

It is a super-2 number, since 2×214321831² = 91867694486385122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 214321796 and 214321805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214321031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107160915 + 107160916.

It is an arithmetic number, because the mean of its divisors is an integer number (107160916).

Almost surely, 2^214321831 is an apocalyptic number.

214321831 is a deficient number, since it is larger than the sum of its proper divisors (1).

214321831 is an equidigital number, since it uses as much as digits as its factorization.

214321831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

The square root of 214321831 is about 14639.7346628960. The cubic root of 214321831 is about 598.4420982193.

The spelling of 214321831 in words is "two hundred fourteen million, three hundred twenty-one thousand, eight hundred thirty-one".