1545001 has 2 divisors, whose sum is σ = 1545002. Its totient is φ = 1545000.

The previous prime is 1544987. The next prime is 1545007. The reversal of 1545001 is 1005451.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1155625 + 389376 = 1075^2 + 624^2 .

It is a cyclic number.

It is not a de Polignac number, because 1545001 - 2⁹ = 1544489 is a prime.

It is not a weakly prime, because it can be changed into another prime (1545007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 772500 + 772501.

It is an arithmetic number, because the mean of its divisors is an integer number (772501).

2^1545001 is an apocalyptic number.

It is an amenable number.

1545001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1545001 is an equidigital number, since it uses as much as digits as its factorization.

1545001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 1545001 is about 1242.9806917245. The cubic root of 1545001 is about 115.6049033492.

The spelling of 1545001 in words is "one million, five hundred forty-five thousand, one".