361254350221 has 2 divisors, whose sum is σ = 361254350222. Its totient is φ = 361254350220.

The previous prime is 361254350201. The next prime is 361254350279. The reversal of 361254350221 is 122053452163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360636280900 + 618069321 = 600530^2 + 24861^2 .

It is an emirp because it is prime and its reverse (122053452163) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 361254350221 - 2²¹ = 361252253069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361254350201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180627175110 + 180627175111.

It is an arithmetic number, because the mean of its divisors is an integer number (180627175111).

Almost surely, 2^361254350221 is an apocalyptic number.

It is an amenable number.

361254350221 is a deficient number, since it is larger than the sum of its proper divisors (1).

361254350221 is an equidigital number, since it uses as much as digits as its factorization.

361254350221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 361254350221 in words is "three hundred sixty-one billion, two hundred fifty-four million, three hundred fifty thousand, two hundred twenty-one".