274545645 has 16 divisors (see below), whose sum is σ = 479207232. Its totient is φ = 133112960.

The previous prime is 274545589. The next prime is 274545673. The reversal of 274545645 is 546545472.

It is not a de Polignac number, because 274545645 - 2¹⁶ = 274480109 is a prime.

It is a super-3 number, since 3×274545645³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 274545597 and 274545606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 831792 + ... + 832121.

It is an arithmetic number, because the mean of its divisors is an integer number (29950452).

Almost surely, 2^274545645 is an apocalyptic number.

It is an amenable number.

274545645 is a deficient number, since it is larger than the sum of its proper divisors (204661587).

274545645 is a wasteful number, since it uses less digits than its factorization.

274545645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663932.

The product of its digits is 672000, while the sum is 42.

The square root of 274545645 is about 16569.4189698975. The cubic root of 274545645 is about 649.9373864737.

The spelling of 274545645 in words is "two hundred seventy-four million, five hundred forty-five thousand, six hundred forty-five".