361844149 has 4 divisors (see below), whose sum is σ = 361889164. Its totient is φ = 361799136.

The previous prime is 361844141. The next prime is 361844173. The reversal of 361844149 is 941448163.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 164301124 + 197543025 = 12818^2 + 14055^2 .

It is a cyclic number.

It is not a de Polignac number, because 361844149 - 2³ = 361844141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361844141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6792 + ... + 27745.

It is an arithmetic number, because the mean of its divisors is an integer number (90472291).

Almost surely, 2^361844149 is an apocalyptic number.

It is an amenable number.

361844149 is a deficient number, since it is larger than the sum of its proper divisors (45015).

361844149 is a wasteful number, since it uses less digits than its factorization.

361844149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45014.

The product of its digits is 82944, while the sum is 40.

The square root of 361844149 is about 19022.2014761699. The cubic root of 361844149 is about 712.5913039451.

The spelling of 361844149 in words is "three hundred sixty-one million, eight hundred forty-four thousand, one hundred forty-nine".