1241000545 has 4 divisors (see below), whose sum is σ = 1489200660. Its totient is φ = 992800432.

The previous prime is 1241000543. The next prime is 1241000557. The reversal of 1241000545 is 5450001421.

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 159971904 + 1081028641 = 12648^2 + 32879^2 .

It is a cyclic number.

It is not a de Polignac number, because 1241000545 - 2¹ = 1241000543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1241000543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124100050 + ... + 124100059.

It is an arithmetic number, because the mean of its divisors is an integer number (372300165).

Almost surely, 2^1241000545 is an apocalyptic number.

It is an amenable number.

1241000545 is a deficient number, since it is larger than the sum of its proper divisors (248200115).

1241000545 is an equidigital number, since it uses as much as digits as its factorization.

1241000545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248200114.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1241000545 is about 35227.8376429777. The cubic root of 1241000545 is about 1074.6259509887.

Adding to 1241000545 its reverse (5450001421), we get a palindrome (6691001966).

The spelling of 1241000545 in words is "one billion, two hundred forty-one million, five hundred forty-five", and thus it is an aban number.