245547441 has 12 divisors (see below), whose sum is σ = 354822468. Its totient is φ = 163632384.

The previous prime is 245547427. The next prime is 245547521. The reversal of 245547441 is 144745542.

It can be written as a sum of positive squares in 2 ways, for example, as 28132416 + 217415025 = 5304^2 + 14745^2 .

It is not a de Polignac number, because 245547441 - 2²¹ = 243450289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245547396 and 245547405.

It is not an unprimeable number, because it can be changed into a prime (245547041) 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 11 ways as a sum of consecutive naturals, for example, 30541 + ... + 37733.

It is an arithmetic number, because the mean of its divisors is an integer number (29568539).

Almost surely, 2^245547441 is an apocalyptic number.

It is an amenable number.

245547441 is a deficient number, since it is larger than the sum of its proper divisors (109275027).

245547441 is a wasteful number, since it uses less digits than its factorization.

245547441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10992 (or 10989 counting only the distinct ones).

The product of its digits is 89600, while the sum is 36.

The square root of 245547441 is about 15669.9534460061. The cubic root of 245547441 is about 626.1981844851.

The spelling of 245547441 in words is "two hundred forty-five million, five hundred forty-seven thousand, four hundred forty-one".