214246639 has 2 divisors, whose sum is σ = 214246640. Its totient is φ = 214246638.

The previous prime is 214246621. The next prime is 214246649. The reversal of 214246639 is 936642412.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214246639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 214246598 and 214246607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214246649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107123319 + 107123320.

It is an arithmetic number, because the mean of its divisors is an integer number (107123320).

Almost surely, 2^214246639 is an apocalyptic number.

214246639 is a deficient number, since it is larger than the sum of its proper divisors (1).

214246639 is an equidigital number, since it uses as much as digits as its factorization.

214246639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 37.

The square root of 214246639 is about 14637.1663582812. The cubic root of 214246639 is about 598.3721048493.

The spelling of 214246639 in words is "two hundred fourteen million, two hundred forty-six thousand, six hundred thirty-nine".