45647145 has 40 divisors (see below), whose sum is σ = 83853000. Its totient is φ = 23742720.

The previous prime is 45647137. The next prime is 45647191. The reversal of 45647145 is 54174654.

45647145 is a `hidden beast` number, since 4 + 5 + 647 + 1 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1411344 + 44235801 = 1188^2 + 6651^2 .

It is not a de Polignac number, because 45647145 - 2³ = 45647137 is a prime.

It is a super-3 number, since 3×45647145³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 15231 + ... + 17979.

It is an arithmetic number, because the mean of its divisors is an integer number (2096325).

Almost surely, 2^45647145 is an apocalyptic number.

45647145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45647145 is a deficient number, since it is larger than the sum of its proper divisors (38205855).

45647145 is a wasteful number, since it uses less digits than its factorization.

45647145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2807 (or 2798 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 45647145 is about 6756.2670906352. The cubic root of 45647145 is about 357.3862777475.

The spelling of 45647145 in words is "forty-five million, six hundred forty-seven thousand, one hundred forty-five".