45661943 has 8 divisors (see below), whose sum is σ = 46116000. Its totient is φ = 45210528.

The previous prime is 45661939. The next prime is 45661951. The reversal of 45661943 is 34916654.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45661943 - 2² = 45661939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45661897 and 45661906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45661933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53105 + ... + 53957.

It is an arithmetic number, because the mean of its divisors is an integer number (5764500).

Almost surely, 2^45661943 is an apocalyptic number.

45661943 is a deficient number, since it is larger than the sum of its proper divisors (454057).

45661943 is a wasteful number, since it uses less digits than its factorization.

45661943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321.

The product of its digits is 77760, while the sum is 38.

The square root of 45661943 is about 6757.3621332588. The cubic root of 45661943 is about 357.4248930194.

The spelling of 45661943 in words is "forty-five million, six hundred sixty-one thousand, nine hundred forty-three".