214245431 has 4 divisors (see below), whose sum is σ = 217443192. Its totient is φ = 211047672.

The previous prime is 214245419. The next prime is 214245439. The reversal of 214245431 is 134542412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 214245431 - 2²⁶ = 147136567 is a prime.

It is a super-2 number, since 2×214245431² = 91802209408751522, which contains 22 as substring.

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 214245431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214245439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1598780 + ... + 1598913.

It is an arithmetic number, because the mean of its divisors is an integer number (54360798).

Almost surely, 2^214245431 is an apocalyptic number.

214245431 is a deficient number, since it is larger than the sum of its proper divisors (3197761).

214245431 is an equidigital number, since it uses as much as digits as its factorization.

214245431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3197760.

The product of its digits is 3840, while the sum is 26.

The square root of 214245431 is about 14637.1250934055. The cubic root of 214245431 is about 598.3709802345.

Adding to 214245431 its reverse (134542412), we get a palindrome (348787843).

The spelling of 214245431 in words is "two hundred fourteen million, two hundred forty-five thousand, four hundred thirty-one".