366541 has 4 divisors (see below), whose sum is σ = 418912. Its totient is φ = 314172.

The previous prime is 366521. The next prime is 366547. The reversal of 366541 is 145663.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 145663 = 7 ⋅20809.

It is a cyclic number.

It is not a de Polignac number, because 366541 - 2⁹ = 366029 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 (366547) 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, 26175 + ... + 26188.

It is an arithmetic number, because the mean of its divisors is an integer number (104728).

2³⁶⁶⁵⁴¹ is an apocalyptic number.

It is an amenable number.

366541 is a deficient number, since it is larger than the sum of its proper divisors (52371).

366541 is an equidigital number, since it uses as much as digits as its factorization.

366541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52370.

The product of its digits is 2160, while the sum is 25.

The square root of 366541 is about 605.4262960923. The cubic root of 366541 is about 71.5661278775.

The spelling of 366541 in words is "three hundred sixty-six thousand, five hundred forty-one".