4054945 has 4 divisors (see below), whose sum is σ = 4865940. Its totient is φ = 3243952.

The previous prime is 4054933. The next prime is 4054949. The reversal of 4054945 is 5494504.

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 1151329 + 2903616 = 1073^2 + 1704^2 .

It is a cyclic number.

It is not a de Polignac number, because 4054945 - 2⁵ = 4054913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4054949) 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, 405490 + ... + 405499.

It is an arithmetic number, because the mean of its divisors is an integer number (1216485).

Almost surely, 2^4054945 is an apocalyptic number.

It is an amenable number.

4054945 is a deficient number, since it is larger than the sum of its proper divisors (810995).

4054945 is an equidigital number, since it uses as much as digits as its factorization.

4054945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810994.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 4054945 is about 2013.6894000814. The cubic root of 4054945 is about 159.4636336413.

The spelling of 4054945 in words is "four million, fifty-four thousand, nine hundred forty-five".