1523003 has 2 divisors, whose sum is σ = 1523004. Its totient is φ = 1523002.

The previous prime is 1522981. The next prime is 1523009. The reversal of 1523003 is 3003251.

It is a strong prime.

It is an emirp because it is prime and its reverse (3003251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1523003 - 2¹⁴ = 1506619 is a prime.

It is not a weakly prime, because it can be changed into another prime (1523009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 761501 + 761502.

It is an arithmetic number, because the mean of its divisors is an integer number (761502).

2^1523003 is an apocalyptic number.

1523003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1523003 is an equidigital number, since it uses as much as digits as its factorization.

1523003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 1523003 is about 1234.1000769792. The cubic root of 1523003 is about 115.0536107946.

Adding to 1523003 its reverse (3003251), we get a palindrome (4526254).

The spelling of 1523003 in words is "one million, five hundred twenty-three thousand, three".