945641 has 4 divisors (see below), whose sum is σ = 950784. Its totient is φ = 940500.

The previous prime is 945631. The next prime is 945647. The reversal of 945641 is 146549.

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: 146549 = 13 ⋅11273.

It is a cyclic number.

It is not a de Polignac number, because 945641 - 2⁶ = 945577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (945647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2285 + ... + 2666.

It is an arithmetic number, because the mean of its divisors is an integer number (237696).

2⁹⁴⁵⁶⁴¹ is an apocalyptic number.

It is an amenable number.

945641 is a deficient number, since it is larger than the sum of its proper divisors (5143).

945641 is a wasteful number, since it uses less digits than its factorization.

945641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5142.

The product of its digits is 4320, while the sum is 29.

The square root of 945641 is about 972.4407436960. The cubic root of 945641 is about 98.1541721586.

The spelling of 945641 in words is "nine hundred forty-five thousand, six hundred forty-one".