438132061 has 2 divisors, whose sum is σ = 438132062. Its totient is φ = 438132060.

The previous prime is 438132047. The next prime is 438132089. The reversal of 438132061 is 160231834.

It is an a-pointer prime, because the next prime (438132089) can be obtained adding 438132061 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 437060836 + 1071225 = 20906^2 + 1035^2 .

It is a cyclic number.

It is not a de Polignac number, because 438132061 - 2¹⁹ = 437607773 is a prime.

It is a super-2 number, since 2×438132061² = 383919405752215442, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (438132011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219066030 + 219066031.

It is an arithmetic number, because the mean of its divisors is an integer number (219066031).

Almost surely, 2^438132061 is an apocalyptic number.

It is an amenable number.

438132061 is a deficient number, since it is larger than the sum of its proper divisors (1).

438132061 is an equidigital number, since it uses as much as digits as its factorization.

438132061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 438132061 is about 20931.6043580037. The cubic root of 438132061 is about 759.5126498110.

Adding to 438132061 its reverse (160231834), we get a palindrome (598363895).

The spelling of 438132061 in words is "four hundred thirty-eight million, one hundred thirty-two thousand, sixty-one".