361861267 has 4 divisors (see below), whose sum is σ = 365243256. Its totient is φ = 358479280.

The previous prime is 361861261. The next prime is 361861301. The reversal of 361861267 is 762168163.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 361861267 - 2¹⁵ = 361828499 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361861261) 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, 1690834 + ... + 1691047.

It is an arithmetic number, because the mean of its divisors is an integer number (91310814).

Almost surely, 2^361861267 is an apocalyptic number.

361861267 is a deficient number, since it is larger than the sum of its proper divisors (3381989).

361861267 is a wasteful number, since it uses less digits than its factorization.

361861267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3381988.

The product of its digits is 72576, while the sum is 40.

The square root of 361861267 is about 19022.6514187692. The cubic root of 361861267 is about 712.6025407770.

The spelling of 361861267 in words is "three hundred sixty-one million, eight hundred sixty-one thousand, two hundred sixty-seven".