274872545 has 4 divisors (see below), whose sum is σ = 329847060. Its totient is φ = 219898032.

The previous prime is 274872491. The next prime is 274872547. The reversal of 274872545 is 545278472.

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 56896849 + 217975696 = 7543^2 + 14764^2 .

It is a cyclic number.

It is not a de Polignac number, because 274872545 - 2²⁰ = 273823969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 274872496 and 274872505.

It is not an unprimeable number, because it can be changed into a prime (274872547) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 27487250 + ... + 27487259.

It is an arithmetic number, because the mean of its divisors is an integer number (82461765).

Almost surely, 2^274872545 is an apocalyptic number.

It is an amenable number.

274872545 is a deficient number, since it is larger than the sum of its proper divisors (54974515).

274872545 is an equidigital number, since it uses as much as digits as its factorization.

274872545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54974514.

The product of its digits is 627200, while the sum is 44.

The square root of 274872545 is about 16579.2805935601. The cubic root of 274872545 is about 650.1952431233.

The spelling of 274872545 in words is "two hundred seventy-four million, eight hundred seventy-two thousand, five hundred forty-five".