361554241 has 2 divisors, whose sum is σ = 361554242. Its totient is φ = 361554240.

The previous prime is 361554239. The next prime is 361554289. The reversal of 361554241 is 142455163.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252142641 + 109411600 = 15879^2 + 10460^2 .

It is a cyclic number.

It is not a de Polignac number, because 361554241 - 2¹ = 361554239 is a prime.

Together with 361554239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (361554341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180777120 + 180777121.

It is an arithmetic number, because the mean of its divisors is an integer number (180777121).

Almost surely, 2^361554241 is an apocalyptic number.

It is an amenable number.

361554241 is a deficient number, since it is larger than the sum of its proper divisors (1).

361554241 is an equidigital number, since it uses as much as digits as its factorization.

361554241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 31.

The square root of 361554241 is about 19014.5796955915. The cubic root of 361554241 is about 712.4009447193.

The spelling of 361554241 in words is "three hundred sixty-one million, five hundred fifty-four thousand, two hundred forty-one".