945541 has 4 divisors (see below), whose sum is σ = 949900. Its totient is φ = 941184.

The previous prime is 945521. The next prime is 945547. The reversal of 945541 is 145549.

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

It can be written as a sum of positive squares in 2 ways, for example, as 729316 + 216225 = 854^2 + 465^2 .

It is a cyclic number.

It is not a de Polignac number, because 945541 - 2¹⁵ = 912773 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 (945547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1836 + ... + 2293.

It is an arithmetic number, because the mean of its divisors is an integer number (237475).

2⁹⁴⁵⁵⁴¹ is an apocalyptic number.

It is an amenable number.

945541 is a deficient number, since it is larger than the sum of its proper divisors (4359).

945541 is a wasteful number, since it uses less digits than its factorization.

945541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4358.

The product of its digits is 3600, while the sum is 28.

The square root of 945541 is about 972.3893253219. The cubic root of 945541 is about 98.1507121552.

The spelling of 945541 in words is "nine hundred forty-five thousand, five hundred forty-one".