1545241 has 2 divisors, whose sum is σ = 1545242. Its totient is φ = 1545240.

The previous prime is 1545239. The next prime is 1545253. The reversal of 1545241 is 1425451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1210000 + 335241 = 1100^2 + 579^2 .

It is an emirp because it is prime and its reverse (1425451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1545241 - 2¹ = 1545239 is a prime.

Together with 1545239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1545041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 772620 + 772621.

It is an arithmetic number, because the mean of its divisors is an integer number (772621).

2^1545241 is an apocalyptic number.

It is an amenable number.

1545241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1545241 is an equidigital number, since it uses as much as digits as its factorization.

1545241 is an evil number, because the sum of its binary digits is even.

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

The square root of 1545241 is about 1243.0772301028. The cubic root of 1545241 is about 115.6108890498.

The spelling of 1545241 in words is "one million, five hundred forty-five thousand, two hundred forty-one".