234213445549 has 2 divisors, whose sum is σ = 234213445550. Its totient is φ = 234213445548.

The previous prime is 234213445481. The next prime is 234213445559. The reversal of 234213445549 is 945544312432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230587238025 + 3626207524 = 480195^2 + 60218^2 .

It is a cyclic number.

It is not a de Polignac number, because 234213445549 - 2³⁵ = 199853707181 is a prime.

It is a super-2 number, since 2×234213445549² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 234213445499 and 234213445508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234213445559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117106722774 + 117106722775.

It is an arithmetic number, because the mean of its divisors is an integer number (117106722775).

Almost surely, 2^234213445549 is an apocalyptic number.

It is an amenable number.

234213445549 is a deficient number, since it is larger than the sum of its proper divisors (1).

234213445549 is an equidigital number, since it uses as much as digits as its factorization.

234213445549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2073600, while the sum is 46.

The spelling of 234213445549 in words is "two hundred thirty-four billion, two hundred thirteen million, four hundred forty-five thousand, five hundred forty-nine".