45641961 has 28 divisors (see below), whose sum is σ = 69081972. Its totient is φ = 30139776.

The previous prime is 45641929. The next prime is 45641983. The reversal of 45641961 is 16914654.

45641961 is a `hidden beast` number, since 4 + 5 + 641 + 9 + 6 + 1 = 666.

45641961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 33698025 + 11943936 = 5805^2 + 3456^2 .

It is not a de Polignac number, because 45641961 - 2⁵ = 45641929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45641261) 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 27 ways as a sum of consecutive naturals, for example, 99645 + ... + 100101.

Almost surely, 2^45641961 is an apocalyptic number.

It is an amenable number.

45641961 is a deficient number, since it is larger than the sum of its proper divisors (23440011).

45641961 is an equidigital number, since it uses as much as digits as its factorization.

45641961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612 (or 597 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 45641961 is about 6755.8834359394. The cubic root of 45641961 is about 357.3727481638.

The spelling of 45641961 in words is "forty-five million, six hundred forty-one thousand, nine hundred sixty-one".