438124613 has 2 divisors, whose sum is σ = 438124614. Its totient is φ = 438124612.

The previous prime is 438124541. The next prime is 438124627. The reversal of 438124613 is 316421834.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 349802209 + 88322404 = 18703^2 + 9398^2 .

It is a cyclic number.

It is not a de Polignac number, because 438124613 - 2¹² = 438120517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 438124613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (438124633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219062306 + 219062307.

It is an arithmetic number, because the mean of its divisors is an integer number (219062307).

Almost surely, 2^438124613 is an apocalyptic number.

It is an amenable number.

438124613 is a deficient number, since it is larger than the sum of its proper divisors (1).

438124613 is an equidigital number, since it uses as much as digits as its factorization.

438124613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

The square root of 438124613 is about 20931.4264444638. The cubic root of 438124613 is about 759.5083460232.

The spelling of 438124613 in words is "four hundred thirty-eight million, one hundred twenty-four thousand, six hundred thirteen".